| ALB | KALB | Albany International Airport | Albany | Large |
| ABQ | KABQ | Albuquerque International Sunport Airport | Albuquerque | Large |
| ANC | PANC | Ted Stevens Anchorage Intl Airport | Anchorage | Large |
| ATL | KATL | Hartsfield–Jackson Atlanta Intl Airport | Atlanta | Large |
| AUS | KAUS | Austin–Bergstrom International Airport | Austin | Large |
| BWI | KBWI | Baltimore/Washington Intl Airport | Baltimore | Large |
| BHM | KBHM | Birmingham-Shuttlesworth International Airport | Birmingham | Large |
| BOI | KBOI | Boise Air Terminal/Gowen Field | Boise | Large |
| BOS | KBOS | Boston Logan International Airport | Boston | Large |
| BUF | KBUF | Buffalo Niagara International Airport | Buffalo | Large |
| BUR | KBUR | Hollywood Burbank/Bob Hope Airport | Burbank | Large |
| CHS | KCHS | Charleston International Airport | Charleston | Large |
| CLT | KCLT | Charlotte Douglas International Airport | Charlotte | Large |
| MDW | KMDW | Chicago Midway International Airport | Chicago | Large |
| ORD | KORD | O'Hare International Airport | Chicago | Large |
| CVG | KCVG | Cincinnati Northern Kentucky International Airport | Cincinnati / Covington | Large |
| CLE | KCLE | Cleveland Hopkins International Airport | Cleveland | Large |
| COS | KCOS | City of Colorado Springs Municipal Airport | Colorado Springs | Large |
| CMH | KCMH | John Glenn Columbus International Airport | Columbus | Large |
| DAL | KDAL | Dallas Love Field | Dallas | Large |
| DFW | KDFW | Dallas/Fort Worth International Airport | Dallas | Large |
| DEN | KDEN | Denver International Airport | Denver | Large |
| DSM | KDSM | Des Moines International Airport | Des Moines | Large |
| DTW | KDTW | Detroit Metropolitan Airport | Detroit | Large |
| ELP | KELP | El Paso International Airport | El Paso | Large |
| FLL | KFLL | Fort Lauderdale–Hollywood Intl Airport | Fort Lauderdale | Large |
| RSW | KRSW | Southwest Florida International Airport | Fort Myers | Large |
| FAT | KFAT | Fresno Yosemite International Airport | Fresno | Large |
| GRR | KGRR | Gerald R. Ford International Airport | Grand Rapids | Large |
| GSO | KGSO | Piedmont Triad International Airport | Greensboro | Large |
| BDL | KBDL | Bradley International Airport | Hartford | Large |
| HNL | PHNL | Daniel K. Inouye International Airport | Honolulu | Large |
| HOU | KHOU | William P. Hobby Airport | Houston | Large |
| IAH | KIAH | George Bush Intercontinental Airport | Houston | Large |
| IND | KIND | Indianapolis International Airport | Indianapolis | Large |
| JAX | KJAX | Jacksonville International Airport | Jacksonville | Large |
| OGG | PHOG | Kahului International Airport | Kahului | Large |
| KOA | PHKO | Ellison Onizuka Kona International Airport at Keāhole | Kailua-Kona | Large |
| MCI | KMCI | Kansas City International Airport | Kansas City | Large |
| TYS | KTYS | McGhee Tyson Airport | Knoxville/Maryville | Large |
| LAS | KLAS | Harry Reid International Airport | Las Vegas | Large |
| LIH | PHLI | Lihue Airport | Lihue, Kauai | Large |
| LGB | KLGB | Long Beach International Airport | Long Beach | Large |
| LAX | KLAX | Los Angeles International Airport | Los Angeles | Large |
| SDF | KSDF | Louisville Muhammad Ali International Airport | Louisville | Large |
| MEM | KMEM | Memphis International Airport | Memphis | Large |
| MIA | KMIA | Miami International Airport | Miami | Large |
| MKE | KMKE | General Mitchell International Airport | Milwaukee | Large |
| MSP | KMSP | Minneapolis–St Paul Intl Airport | Minneapolis | Large |
| MYR | KMYR | Myrtle Beach International Airport | Myrtle Beach | Large |
| BNA | KBNA | Nashville International Airport | Nashville | Large |
| MSY | KMSY | Louis Armstrong New Orleans International Airport | New Orleans | Large |
| JFK | KJFK | John F. Kennedy International Airport | New York | Large |
| LGA | KLGA | LaGuardia Airport | New York | Large |
| EWR | KEWR | Newark Liberty International Airport | New York/Newark | Large |
| ORF | KORF | Norfolk International Airport | Norfolk | Large |
| OAK | KOAK | Oakland International Airport | Oakland | Large |
| OKC | KOKC | OKC Will Rogers World Airport | Oklahoma City | Large |
| OMA | KOMA | Eppley Airfield | Omaha | Large |
| ONT | KONT | Ontario International Airport | Ontario | Large |
| MCO | KMCO | Orlando International Airport | Orlando | Large |
| SFB | KSFB | Orlando Sanford International Airport | Orlando | Large |
| PSP | KPSP | Palm Springs International Airport | Palm Springs | Large |
| PNS | KPNS | Pensacola International Airport | Pensacola | Large |
| PHL | KPHL | Philadelphia International Airport | Philadelphia | Large |
| PHX | KPHX | Phoenix Sky Harbor Intl Airport | Phoenix | Large |
| PIE | KPIE | St. Petersburg Clearwater International Airport | Pinellas Park | Large |
| PIT | KPIT | Pittsburgh International Airport | Pittsburgh | Large |
| PDX | KPDX | Portland International Airport | Portland | Large |
| PWM | KPWM | Portland International Jetport Airport | Portland | Large |
| PVD | KPVD | Rhode Island T. F. Green International Airport | Providence/Warwick | Large |
| RDU | KRDU | Raleigh–Durham International Airport | Raleigh | Large |
| RNO | KRNO | Reno Tahoe International Airport | Reno | Large |
| RIC | KRIC | Richmond International Airport | Richmond | Large |
| ROC | KROC | Frederick Douglass Greater Rochester International Airport | Rochester | Large |
| SMF | KSMF | Sacramento International Airport | Sacramento | Large |
| SLC | KSLC | Salt Lake City International Airport | Salt Lake City | Large |
| SAT | KSAT | San Antonio International Airport | San Antonio | Large |
| SBD | KSBD | San Bernardino International Airport | San Bernardino | Large |
| SAN | KSAN | San Diego International Airport | San Diego | Large |
| SFO | KSFO | San Francisco International Airport | San Francisco | Large |
| SJC | KSJC | San José Mineta International Airport | San Jose | Large |
| SNA | KSNA | John Wayne Orange County International Airport | Santa Ana | Large |
| SRQ | KSRQ | Sarasota Bradenton International Airport | Sarasota/Bradenton | Large |
| SAV | KSAV | Savannah Hilton Head International Airport | Savannah | Large |
| SEA | KSEA | Seattle–Tacoma International Airport | Seattle | Large |
| GEG | KGEG | Spokane International Airport | Spokane | Large |
| STL | KSTL | St. Louis Lambert Intl Airport | St. Louis | Large |
| SYR | KSYR | Syracuse Hancock International Airport | Syracuse | Large |
| TPA | KTPA | Tampa International Airport | Tampa | Large |
| TUS | KTUS | Tucson International Airport | Tucson | Large |
| TUL | KTUL | Tulsa International Airport | Tulsa | Large |
| DCA | KDCA | Ronald Reagan Washington Ntl Airport | Washington, D.C. | Large |
| IAD | KIAD | Washington Dulles Intl Airport | Washington, D.C. | Large |
| PBI | KPBI | President Donald J. Trump International Airport | West Palm Beach | Large |
| ABR | KABR | Aberdeen Regional Airport | Aberdeen | Medium |
| APG | KAPG | Phillips Army Air Field | Aberdeen | Medium |
| ABI | KABI | Abilene Regional Airport | Abilene | Medium |
| DYS | KDYS | Dyess Air Force Base | Abilene | Medium |
| ADT | KADH | Ada Regional Airport | Ada | Medium |
| ADK | PADK | Adak Airport | Adak | Medium |
| AKC | KAKR | Akron Fulton International Airport | Akron | Medium |
| CAK | KCAK | Akron Canton Regional Airport | Akron | Medium |
| ALM | KALM | Alamogordo White Sands Regional Airport | Alamogordo | Medium |
| HMN | KHMN | Holloman Air Force Base | Alamogordo | Medium |
| ALS | KALS | San Luis Valley Regional Airport/Bergman Field | Alamosa | Medium |
| ABY | KABY | Southwest Georgia Regional Airport | Albany | Medium |
| WKK | | Aleknagik / New Airport | Aleknagik | Medium |
| AEX | KAEX | Alexandria International Airport | Alexandria | Medium |
| AXN | KAXN | Chandler Field | Alexandria | Medium |
| ESF | KESF | Esler Army Airfield / Esler Regional Airport | Alexandria | Medium |
| ALI | KALI | Alice International Airport | Alice | Medium |
| ABE | KABE | Lehigh Valley International Airport | Allentown/Bethlehem | Medium |
| AIA | KAIA | Alliance Municipal Airport | Alliance | Medium |
| APN | KAPN | Alpena County Regional Airport | Alpena | Medium |
| RUI | KSRR | Sierra Blanca Regional Airport | Alto | Medium |
| ALN | KALN | St Louis Regional Airport | Alton/St Louis | Medium |
| AOO | KAOO | Altoona Blair County Airport | Altoona | Medium |
| LTS | KLTS | Altus Air Force Base | Altus | Medium |
| AMA | KAMA | Rick Husband Amarillo International Airport | Amarillo | Medium |
| ABL | PAFM | Ambler Airport | Ambler | Medium |
| AKP | PAKP | Anaktuvuk Pass Airport | Anaktuvuk Pass | Medium |
| EDF | PAED | Elmendorf Air Force Base | Anchorage | Medium |
| MRI | PAMR | Merrill Field | Anchorage | Medium |
| AND | KAND | Anderson Regional Airport | Anderson | Medium |
| LJN | KLBX | Texas Gulf Coast Regional Airport | Angleton | Medium |
| ANI | PANI | Aniak Airport | Aniak | Medium |
| ANB | KANB | Anniston Regional Airport | Anniston | Medium |
| ANV | PANV | Anvik Airport | Anvik | Medium |
| ATW | KATW | Appleton International Airport | Appleton | Medium |
| ACV | KACV | California Redwood Coast-Humboldt County Airport | Arcata/Eureka | Medium |
| ARC | PARC | Arctic Village Airport | Arctic Village | Medium |
| AVL | KAVL | Asheville Regional Airport | Asheville | Medium |
| JFN | KHZY | Northeast Ohio Regional Airport | Ashtabula | Medium |
| ASE | KASE | Aspen-Pitkin County Airport (Sardy Field) | Aspen | Medium |
| AST | KAST | Astoria Regional Airport | Astoria | Medium |
| AHN | KAHN | Athens Ben Epps Airport | Athens | Medium |
| FTY | KFTY | Fulton County Airport Brown Field | Atlanta | Medium |
| PDK | KPDK | DeKalb Peachtree Airport | Atlanta | Medium |
| ACY | KACY | Atlantic City International Airport | Atlantic City | Medium |
| ATK | PATQ | Atqasuk Edward Burnell Sr Memorial Airport | Atqasuk | Medium |
| AGS | KAGS | Augusta Regional At Bush Field | Augusta | Medium |
| AUG | KAUG | Augusta State Airport | Augusta | Medium |
| DNL | KDNL | Daniel Field | Augusta | Medium |
| BFK | KBKF | Buckley Space Force Base | Aurora | Medium |
| BKE | KBKE | Baker City Municipal Airport | Baker City | Medium |
| BFL | KBFL | Meadows Field | Bakersfield | Medium |
| MTN | KMTN | Martin State Airport | Baltimore | Medium |
| BGR | KBGR | Bangor International Airport | Bangor | Medium |
| BHB | KBHB | Hancock County-Bar Harbor Airport | Bar Harbor | Medium |
| MPV | KMPV | Edward F Knapp State Airport | Barre/Montpelier | Medium |
| BTI | PABA | Barter Island Long Range Radar Station Airport | Barter Island | Medium |
| BTR | KBTR | Baton Rouge Metropolitan Airport | Baton Rouge | Medium |
| BTL | KBTL | Battle Creek Executive Airport at Kellogg Field | Battle Creek | Medium |
| BDE | KBDE | Baudette International Airport | Baudette | Medium |
| BAB | KBAB | Beale Air Force Base | Beale Air Force Base | Medium |
| BPT | KBPT | Jack Brooks Regional Airport | Beaumont/Port Arthur | Medium |
| BKW | KBKW | Raleigh County Memorial Airport | Beaver | Medium |
| BFP | KBVI | Beaver County Airport | Beaver Falls | Medium |
| BED | KBED | Laurence G Hanscom Field | Bedford | Medium |
| BLV | KBLV | Scott AFB/Midamerica Airport | Belleville | Medium |
| BLI | KBLI | Bellingham International Airport | Bellingham | Medium |
| BJI | KBJI | Bemidji Regional Airport | Bemidji | Medium |
| BET | PABE | Bethel Airport | Bethel | Medium |
| BVY | KBVY | Beverly Regional Airport | Beverly / Danvers | Medium |
| BPI | KBPI | Miley Memorial Field | Big Piney | Medium |
| BIL | KBIL | Billings Logan International Airport | Billings | Medium |
| BIX | KBIX | Keesler Air Force Base | Biloxi | Medium |
| BGM | KBGM | Greater Binghamton/Edwin A Link field | Binghamton | Medium |
| BIH | KBIH | Eastern Sierra Regional Airport | Bishop | Medium |
| BIS | KBIS | Bismarck Municipal Airport | Bismarck | Medium |
| BMG | KBMG | Monroe County Airport | Bloomington | Medium |
| BMI | KBMI | Central Illinois Regional Airport at Bloomington-Normal | Bloomington/Normal | Medium |
| TRI | KTRI | Tri-Cities Regional TN/VA Airport | Blountville | Medium |
| BLF | KBLF | Mercer County Airport | Bluefield | Medium |
| BLH | KBLH | Blythe Airport | Blythe | Medium |
| BYH | KBYH | Arkansas International Airport | Blytheville | Medium |
| BCT | KBCT | Boca Raton Airport | Boca Raton | Medium |
| BAD | KBAD | Barksdale Air Force Base | Bossier City | Medium |
| BLD | | Boulder City Municipal Airport | Boulder City | Medium |
| BWG | KBWG | Bowling Green Warren County Regional Airport | Bowling Green | Medium |
| BZN | KBZN | Bozeman Yellowstone International Airport | Bozeman | Medium |
| BFD | KBFD | Bradford Regional Airport | Bradford | Medium |
| BBD | KBBD | Curtis Field | Brady | Medium |
| BRD | KBRD | Brainerd Lakes Regional Airport | Brainerd | Medium |
| BKG | KBBG | Branson Airport | Branson | Medium |
| PWT | KPWT | Bremerton National Airport | Bremerton | Medium |
| BDR | KBDR | Igor I Sikorsky Memorial Airport | Bridgeport | Medium |
| CKB | KCKB | North Central West Virginia Airport | Bridgeport | Medium |
| BRO | KBRO | Brownsville South Padre Island International Airport | Brownsville | Medium |
| BQK | KBQK | Brunswick Golden Isles Airport | Brunswick | Medium |
| NHZ | KBXM | Brunswick Executive Airport | Brunswick | Medium |
| BCE | KBCE | Bryce Canyon Airport | Bryce Canyon | Medium |
| IFP | KIFP | Laughlin Bullhead International Airport | Bullhead City | Medium |
| BYI | KBYI | Burley Municipal Airport | Burley | Medium |
| BRL | KBRL | Southeast Iowa Regional Airport | Burlington | Medium |
| BTV | KBTV | Patrick Leahy Burlington International Airport | Burlington | Medium |
| BNO | KBNO | Burns Municipal Airport | Burns | Medium |
| BTM | KBTM | Bert Mooney Airport | Butte | Medium |
| VOK | KVOK | Volk Field | Camp Douglas | Medium |
| ADW | KADW | Joint Base Andrews | Camp Springs | Medium |
| CGI | KCGI | Cape Girardeau Regional Airport | Cape Girardeau | Medium |
| LUR | PALU | Cape Lisburne LRRS Airport | Cape Lisburne | Medium |
| EHM | PAEH | Cape Newenham LRRS Airport | Cape Newenham | Medium |
| CZF | PACZ | Cape Romanzof LRRS Airport | Cape Romanzof | Medium |
| CAR | KCAR | Caribou Municipal Airport | Caribou | Medium |
| CLD | KCRQ | McClellan-Palomar Airport | Carlsbad | Medium |
| CNM | KCNM | Cavern City Air Terminal | Carlsbad | Medium |
| CSN | KCXP | Carson Airport | Carson City | Medium |
| CPR | KCPR | Casper-Natrona County International Airport | Casper | Medium |
| CDC | KCDC | Cedar City Regional Airport | Cedar City | Medium |
| CID | KCID | The Eastern Iowa Airport | Cedar Rapids | Medium |
| CDR | KCDR | Chadron Municipal Airport | Chadron | Medium |
| CNU | KCNU | Chanute Martin Johnson Airport | Chanute | Medium |
| CCY | KCCY | Northeast Iowa Regional Airport | Charles City | Medium |
| CRW | KCRW | Yeager Airport | Charleston | Medium |
| CHO | KCHO | Charlottesville Albemarle Airport | Charlottesville | Medium |
| CHA | KCHA | Chattanooga Metropolitan Airport (Lovell Field) | Chattanooga | Medium |
| CYS | KCYS | Cheyenne Regional Jerry Olson Field | Cheyenne | Medium |
| PWK | | Chicago Executive Airport | Chicago/Prospect Heights/Wheeling | Medium |
| RFD | KRFD | Chicago Rockford International Airport | Chicago/Rockford | Medium |
| DPA | KDPA | Dupage Airport | Chicago/West Chicago | Medium |
| CEF | | Westover Metropolitan Airport / Westover Air Reserve Base | Chicopee | Medium |
| CDS | KCDS | Childress Municipal Airport | Childress | Medium |
| LUK | KLUK | Cincinnati Municipal Airport Lunken Field | Cincinnati | Medium |
| BKL | KBKL | Burke Lakefront Airport | Cleveland | Medium |
| CGF | KCGF | Cuyahoga County Airport | Cleveland | Medium |
| CVN | KCVN | Clovis Municipal Airport | Clovis | Medium |
| CVS | KCVS | Cannon Air Force Base | Clovis | Medium |
| COF | KCOF | Patrick Space Force Base | Cocoa Beach | Medium |
| COD | KCOD | Yellowstone Regional Airport | Cody | Medium |
| COE | KCOE | Coeur D'Alene Airport - Pappy Boyington Field | Coeur d'Alene | Medium |
| CDB | PACD | Cold Bay Airport | Cold Bay | Medium |
| CLL | KCLL | Easterwood Field | College Station | Medium |
| CAE | KCAE | Columbia Metropolitan Airport | Columbia | Medium |
| COU | KCOU | Columbia Regional Airport | Columbia | Medium |
| CUB | KCUB | Jim Hamilton L.B. Owens Airport | Columbia | Medium |
| CBM | KCBM | Columbus Air Force Base | Columbus | Medium |
| CLU | KBAK | Columbus Municipal Airport | Columbus | Medium |
| CSG | KCSG | Columbus Airport | Columbus | Medium |
| LCK | KLCK | Rickenbacker International Airport | Columbus | Medium |
| OLU | KOLU | Columbus Municipal Airport | Columbus | Medium |
| OSU | KOSU | The Ohio State University Airport - Don Scott Field | Columbus | Medium |
| GTR | KGTR | Golden Triangle Regional Airport | Columbus/W Point/Starkville | Medium |
| CCR | KCCR | Buchanan Field | Concord | Medium |
| CON | KCON | Concord Municipal Airport | Concord | Medium |
| USA | KJQF | Concord-Padgett Regional Airport | Concord | Medium |
| CDV | PACV | Merle K (Mudhole) Smith Airport | Cordova | Medium |
| CRP | KCRP | Corpus Christi International Airport | Corpus Christi | Medium |
| NGP | KNGP | Naval Air Station Corpus Christi Truax Field | Corpus Christi | Medium |
| CEZ | KCEZ | Cortez Municipal Airport | Cortez | Medium |
| CVO | KCVO | Corvallis Municipal Airport | Corvallis | Medium |
| CEC | KCEC | Jack Mc Namara Field Airport | Crescent City | Medium |
| CEW | KCEW | Bob Sikes Airport | Crestview | Medium |
| EGI | KEGI | Duke Field | Crestview | Medium |
| CSV | KCSV | Crossville Memorial Airport Whitson Field | Crossville | Medium |
| CTB | KCTB | Cut Bank International Airport | Cut Bank | Medium |
| DAG | KDAG | Barstow Daggett Airport | Daggett | Medium |
| DHT | KDHT | Dalhart Municipal Airport | Dalhart | Medium |
| DLS | KDLS | Columbia Gorge Regional Airport | Dallesport / The Dalles | Medium |
| DXR | KDXR | Danbury Municipal Airport | Danbury | Medium |
| DAN | KDAN | Danville Regional Airport | Danville | Medium |
| DAY | KDAY | James M. Cox Dayton International Airport | Dayton | Medium |
| FFO | KFFO | Wright-Patterson Air Force Base | Dayton | Medium |
| DAB | KDAB | Daytona Beach International Airport | Daytona Beach | Medium |
| SCC | PASC | Deadhorse Airport | Deadhorse | Medium |
| DEC | KDEC | Decatur Airport | Decatur | Medium |
| DRG | PADE | Deering Airport | Deering | Medium |
| DLF | KDLF | Laughlin Air Force Base | Del Rio | Medium |
| DRT | KDRT | Del Rio International Airport | Del Rio | Medium |
| BIG | PABI | Allen Army Airfield | Delta Junction Ft Greely | Medium |
| DMN | KDMN | Deming Municipal Airport | Deming | Medium |
| PNX | KGYI | North Texas Regional Airport Perrin Field | Denison | Medium |
| APA | KAPA | Centennial Airport | Denver | Medium |
| BJC | KBJC | Rocky Mountain Metropolitan Airport | Denver | Medium |
| DRI | KDRI | Beauregard Regional Airport | DeRidder | Medium |
| DSI | KDTS | Destin Executive Airport | Destin | Medium |
| DET | | Coleman A. Young Municipal Airport | Detroit | Medium |
| YIP | KYIP | Willow Run Airport | Detroit | Medium |
| DVL | KDVL | Devils Lake Regional Airport | Devils Lake | Medium |
| DIK | KDIK | Dickinson Theodore Roosevelt Regional Airport | Dickinson | Medium |
| DLG | PADL | Dillingham Airport | Dillingham | Medium |
| DDC | KDDC | Dodge City Regional Airport | Dodge City | Medium |
| DHN | KDHN | Dothan Regional Airport | Dothan | Medium |
| DUG | KDUG | Bisbee Douglas International Airport | Douglas Bisbee | Medium |
| DOV | KDOV | Dover Civil Air Terminal/Dover Air Force Base | Dover | Medium |
| DUJ | KDUJ | DuBois Regional Airport | Dubois | Medium |
| DBQ | KDBQ | Dubuque Regional Airport | Dubuque | Medium |
| DLH | KDLH | Duluth International Airport | Duluth | Medium |
| DRO | KDRO | Durango La Plata County Airport | Durango | Medium |
| DUA | KDUA | Durant Regional Airport - Eaker Field | Durant | Medium |
| EGE | KEGE | Eagle County Regional Airport | Eagle | Medium |
| FRG | KFRG | Republic Airport | East Farmingdale | Medium |
| MMT | KMMT | Mc Entire Joint National Guard Base | Eastover | Medium |
| ESD | KORS | Orcas Island Airport | Eastsound | Medium |
| EAU | KEAU | Chippewa Valley Regional Airport | Eau Claire | Medium |
| EDW | KEDW | Edwards Air Force Base | Edwards | Medium |
| EGX | PAII | Egegik Airport | Egegik | Medium |
| NJK | KNJK | El Centro NAF Airport (Vraciu Field) | El Centro | Medium |
| ELD | KELD | South Arkansas Regional Airport at Goodwin Field | El Dorado | Medium |
| ECG | KECG | Elizabeth City Regional Airport & Coast Guard Air Station | Elizabeth City | Medium |
| EKN | KEKN | Elkins-Randolph County Regional Airport | Elkins | Medium |
| EKO | KEKO | Elko Regional Airport | Elko | Medium |
| ELM | KELM | Elmira Corning Regional Airport | Elmira/Corning | Medium |
| ELY | KELY | Ely Airport Yelland Field | Ely | Medium |
| LYU | KELO | Ely Municipal Airport | Ely | Medium |
| EMK | PAEM | Emmonak Airport | Emmonak | Medium |
| END | KEND | Vance Air Force Base | Enid | Medium |
| ERI | KERI | Erie International Tom Ridge Field | Erie | Medium |
| ESC | KESC | Delta County Airport | Escanaba | Medium |
| EUG | KEUG | Eugene Airport | Eugene | Medium |
| EKA | KEKA | Murray Field | Eureka | Medium |
| EVW | KEVW | Evanston-Uinta County Airport-Burns Field | Evanston | Medium |
| EVV | KEVV | Evansville Regional Airport | Evansville | Medium |
| PAE | KPAE | Seattle Paine Field International Airport | Everett | Medium |
| TTN | KTTN | Trenton Mercer Airport | Ewing Township | Medium |
| EIL | PAEI | Eielson Air Force Base | Fairbanks | Medium |
| FAI | PAFA | Fairbanks International Airport | Fairbanks | Medium |
| FBK | PAFB | Ladd Army Airfield | Fairbanks | Medium |
| SUU | KSUU | Travis Air Force Base | Fairfield | Medium |
| NFL | KNFL | Fallon Naval Air Station | Fallon | Medium |
| FAR | KFAR | Hector International Airport | Fargo | Medium |
| FMN | KFMN | Four Corners Regional Airport | Farmington | Medium |
| FAY | KFAY | Fayetteville Regional Airport - Grannis Field | Fayetteville | Medium |
| FYV | KFYV | Drake Field | Fayetteville | Medium |
| XNA | KXNA | Northwest Arkansas National Airport | Fayetteville/Springdale/Rogers | Medium |
| FDY | KFDY | Findlay Airport | Findlay | Medium |
| FLG | KFLG | Flagstaff Pulliam Airport | Flagstaff | Medium |
| FNT | KFNT | Bishop International Airport | Flint | Medium |
| FLO | KFLO | Florence Regional Airport | Florence | Medium |
| DAA | KDAA | Davison Army Air Field | Fort Belvoir | Medium |
| LSF | KLSF | Lawson Army Air Field | Fort Benning | Medium |
| BIF | KBIF | Biggs Army Air Field (Fort Bliss) | Fort Bliss/El Paso | Medium |
| FBG | KFBG | Simmons Army Air Field | Fort Bragg | Medium |
| POB | KPOB | Pope Field | Fort Bragg | Medium |
| HOP | KHOP | Campbell Army Airfield (Fort Campbell) | Fort Campbell | Medium |
| FCS | KFCS | Butts AAF (Fort Carson) Air Field | Fort Carson | Medium |
| GRK | KGRK | Killeen Regional Airport / Robert Gray Army Airfield | Fort Cavazos | Medium |
| FOD | KFOD | Fort Dodge Regional Airport | Fort Dodge | Medium |
| FHU | KFHU | Sierra Vista Municipal Airport / Libby Army Air Field | Fort Huachuca / Sierra Vista | Medium |
| MUI | KMUI | Muir Army Air Field (Fort Indiantown Gap) Airport | Fort Indiantown Gap(Annville) | Medium |
| BYS | KBYS | Bicycle Lake Army Air Field | Fort Irwin/Barstow | Medium |
| FTK | KFTK | Godman Army Air Field | Fort Knox | Medium |
| FXE | KFXE | Fort Lauderdale Executive Airport | Fort Lauderdale | Medium |
| TBN | KTBN | Waynesville-St. Robert Regional Airport-Forney Field | Fort Leonard Wood | Medium |
| GRF | KGRF | Gray Army Air Field | Fort Lewis/Tacoma | Medium |
| FME | KFME | Fort Meade Executive Airport | Fort Meade(Odenton) | Medium |
| FMY | KFMY | Page Field | Fort Myers | Medium |
| FPR | KFPR | Treasure Coast International Airport | Fort Pierce | Medium |
| POE | KPOE | Polk Army Air Field | Fort Polk | Medium |
| FRI | KFRI | Marshall Army Air Field | Fort Riley (Junction City) | Medium |
| OZR | KOZR | Cairns AAF (Fort Rucker) Air Field | Fort Rucker/Ozark | Medium |
| FSI | KFSI | Henry Post Army Air Field | Fort Sill | Medium |
| FSM | KFSM | Fort Smith Regional Airport | Fort Smith | Medium |
| FST | KFST | Fort Stockton Pecos County Airport | Fort Stockton | Medium |
| FWA | KFWA | Fort Wayne International Airport | Fort Wayne | Medium |
| AFW | KAFW | Perot Field/Fort Worth Alliance Airport | Fort Worth | Medium |
| FTW | KFTW | Fort Worth Meacham International Airport | Fort Worth | Medium |
| FWH | KNFW | NAS Fort Worth JRB / Carswell Field | Fort Worth | Medium |
| FYU | PFYU | Fort Yukon Airport | Fort Yukon | Medium |
| FKL | KFKL | Venango Regional Airport | Franklin | Medium |
| MBS | KMBS | MBS International Airport | Freeland | Medium |
| FRD | KFHR | Friday Harbor Airport | Friday Harbor | Medium |
| GNV | KGNV | Gainesville Regional Airport | Gainesville | Medium |
| GAL | PAGA | Edward G. Pitka Sr Airport | Galena | Medium |
| GUP | KGUP | Gallup Municipal Airport | Gallup | Medium |
| GLS | KGLS | Scholes International At Galveston Airport | Galveston | Medium |
| GAM | PAGM | Gambell Airport | Gambell | Medium |
| GCK | KGCK | Garden City Regional Airport | Garden City | Medium |
| GYY | | Gary/Chicago International Airport | Gary | Medium |
| GCC | KGCC | Northeast Wyoming Regional Airport | Gillette | Medium |
| GGW | KGGW | Glasgow Valley County Airport Wokal Field | Glasgow | Medium |
| LUF | KLUF | Luke Air Force Base | Glendale | Medium |
| GDV | KGDV | Dawson Community Airport | Glendive | Medium |
| GFL | KGFL | Floyd Bennett Memorial Airport | Glens Falls | Medium |
| GSB | KGSB | Seymour Johnson Air Force Base | Goldsboro | Medium |
| GLD | KGLD | Goodland Municipal Airport | Goodland | Medium |
| GCN | KGCN | Grand Canyon National Park Airport | Grand Canyon - Tusayan | Medium |
| GFK | KGFK | Grand Forks International Airport | Grand Forks | Medium |
| RDR | KRDR | Grand Forks Air Force Base | Grand Forks | Medium |
| GRI | KGRI | Central Nebraska Regional Airport | Grand Island | Medium |
| GJT | KGJT | Grand Junction Regional Airport | Grand Junction | Medium |
| GTF | KGTF | Great Falls International Airport | Great Falls | Medium |
| GRB | KGRB | Austin Straubel International Airport | Green Bay | Medium |
| GLH | KGLH | Mid Delta Regional Airport | Greenville | Medium |
| GMU | KGMU | Greenville Downtown Airport | Greenville | Medium |
| PGV | KPGV | Pitt-Greenville Airport | Greenville | Medium |
| GSP | KGSP | Greenville-Spartanburg International Airport | Greenville/Greer/Spartanburg | Medium |
| GWO | KGWO | Greenwood–Leflore Airport | Greenwood | Medium |
| GON | KGON | Groton New London Airport | Groton | Medium |
| GPT | KGPT | Gulfport Biloxi International Airport | Gulfport | Medium |
| GKN | PAGK | Gulkana Airport | Gulkana | Medium |
| GUC | KGUC | Gunnison Crested Butte Regional Airport | Gunnison | Medium |
| GST | PAGS | Gustavus Airport | Gustavus | Medium |
| GUY | KGUY | Guymon Municipal Airport | Guymon | Medium |
| MQT | KSAW | Marquette/Sawyer International Airport | Gwinn | Medium |
| HGR | KHGR | Hagerstown Regional Richard A Henson Field | Hagerstown | Medium |
| SUN | KSUN | Friedman Memorial Airport | Hailey | Medium |
| HNS | PAHN | Haines Airport | Haines | Medium |
| LFI | KLFI | Langley Air Force Base | Hampton | Medium |
| HNM | PHHN | Hana Airport | Hana | Medium |
| CMX | KCMX | Houghton County Memorial Airport | Hancock | Medium |
| HRL | KHRL | Valley International Airport | Harlingen | Medium |
| MDT | KMDT | Harrisburg International Airport | Harrisburg | Medium |
| HRO | KHRO | Boone County Airport | Harrison | Medium |
| HFD | KHFD | Hartford Brainard Airport | Hartford | Medium |
| HBG | KHBG | Hattiesburg Bobby L Chain Municipal Airport | Hattiesburg | Medium |
| HVR | KHVR | Havre City County Airport | Havre | Medium |
| HHR | KHHR | Jack Northrop Field Hawthorne Municipal Airport | Hawthorne | Medium |
| HDN | KHDN | Yampa Valley Airport | Hayden | Medium |
| HYS | KHYS | Hays Regional Airport | Hays | Medium |
| HYR | KHYR | Sawyer County Airport | Hayward | Medium |
| HLN | KHLN | Helena Regional Airport | Helena | Medium |
| HIB | KHIB | Range Regional Airport | Hibbing | Medium |
| HKY | KHKY | Hickory Regional Airport | Hickory | Medium |
| ITO | PHTO | Hilo International Airport | Hilo | Medium |
| HHH | KHXD | Hilton Head Airport | Hilton Head Island | Medium |
| HBR | KHBR | Hobart Regional Airport | Hobart | Medium |
| HOB | KHOB | Lea County Regional Airport | Hobbs | Medium |
| HWO | KHWO | North Perry Airport | Hollywood | Medium |
| HCR | PAHC | Holy Cross Airport | Holy Cross | Medium |
| HOM | PAHO | Homer Airport | Homer | Medium |
| HST | KHST | Homestead Air Reserve Base | Homestead | Medium |
| HQM | KHQM | Bowerman Airport | Hoquiam | Medium |
| HOT | KHOT | Memorial Field Airport | Hot Springs | Medium |
| HUL | KHUL | Houlton International Airport | Houlton | Medium |
| CXO | KCXO | Conroe-North Houston Regional Airport | Houston | Medium |
| EFD | KEFD | Ellington Airport | Houston | Medium |
| SGR | KSGR | Sugar Land Regional Airport | Houston | Medium |
| HTS | KHTS | Tri-State Airport / Milton J. Ferguson Field | Huntington | Medium |
| HSV | KHSV | Huntsville International Airport | Huntsville | Medium |
| HTV | KUTS | Huntsville Regional Airport | Huntsville | Medium |
| HON | KHON | Huron Regional Airport | Huron | Medium |
| HSL | PAHL | Huslia Airport | Huslia | Medium |
| HUT | KHUT | Hutchinson Municipal Airport | Hutchinson | Medium |
| HYA | KHYA | Cape Cod Gateway Airport | Hyannis | Medium |
| IDA | KIDA | Idaho Falls Regional Airport | Idaho Falls | Medium |
| ILI | PAIL | Iliamna Airport | Iliamna | Medium |
| IPL | KIPL | Imperial County Airport | Imperial | Medium |
| INL | KINL | Falls International Airport | International Falls | Medium |
| ISP | KISP | Long Island MacArthur Airport | Islip | Medium |
| ITH | KITH | Ithaca Tompkins Regional Airport | Ithaca | Medium |
| JAC | KJAC | Jackson Hole Airport | Jackson | Medium |
| JAN | KJAN | Jackson-Medgar Wiley Evers International Airport | Jackson | Medium |
| JXN | KJXN | Jackson County Airport/Reynolds Field | Jackson | Medium |
| MKL | KMKL | McKellar-Sipes Regional Airport | Jackson | Medium |
| CRG | KCRG | Jacksonville Executive at Craig Airport | Jacksonville | Medium |
| LRF | KLRF | Little Rock Air Force Base | Jacksonville | Medium |
| NIP | KNIP | Jacksonville Naval Air Station (Towers Field) | Jacksonville | Medium |
| NRB | KNRB | Naval Station Mayport / Admiral David L McDonald Field | Jacksonville | Medium |
| VQQ | KVQQ | Cecil Airport | Jacksonville | Medium |
| JHW | KJHW | Chautauqua County-Jamestown Airport | Jamestown | Medium |
| JMS | KJMS | Jamestown Regional Airport | Jamestown | Medium |
| JST | KJST | John Murtha Johnstown Cambria County Airport | Johnstown | Medium |
| JBR | KJBR | Jonesboro Municipal Airport | Jonesboro | Medium |
| JLN | KJLN | Joplin Regional Airport | Joplin | Medium |
| JCT | KJCT | Kimble County Airport | Junction | Medium |
| JNU | PAJN | Juneau International Airport | Juneau | Medium |
| AZO | KAZO | Kalamazoo/Battle Creek International Airport | Kalamazoo | Medium |
| FCA | KGPI | Glacier Park International Airport | Kalispell | Medium |
| NGF | PHNG | Kaneohe Bay MCAS (Marion E. Carl Field) Airport | Kaneohe | Medium |
| IKK | KIKK | Greater Kankakee Airport | Kankakee | Medium |
| MKC | KMKC | Charles B. Wheeler Downtown Airport | Kansas City | Medium |
| JRF | PHJR | Kalaeloa Airport | Kapolei | Medium |
| MKK | PHMK | Molokai Airport | Kaunakakai | Medium |
| EAR | KEAR | Kearney Regional Airport | Kearney | Medium |
| EEN | KEEN | Dillant Hopkins Airport | Keene | Medium |
| BKH | PHBK | Barking Sands Airport | Kekaha | Medium |
| KLS | KKLS | Southwest Washington Regional Airport | Kelso | Medium |
| ENA | PAEN | Kenai Municipal Airport | Kenai | Medium |
| ENW | KENW | Kenosha Regional Airport | Kenosha | Medium |
| KTN | PAKT | Ketchikan International Airport | Ketchikan | Medium |
| OCA | | Ocean Reef Club Airport | Key Largo | Medium |
| EYW | KEYW | Key West International Airport | Key West | Medium |
| NQX | KNQX | Naval Air Station Key West/Boca Chica Field | Key West | Medium |
| IAN | PAIK | Bob Baker Memorial Airport | Kiana | Medium |
| CIU | KCIU | Chippewa County International Airport | Kincheloe | Medium |
| AKN | PAKN | King Salmon Airport | King Salmon | Medium |
| IGM | KIGM | Kingman Airport | Kingman | Medium |
| IMT | KIMT | Ford Airport | Kingsford | Medium |
| NQI | KNQI | Kingsville Naval Air Station | Kingsville | Medium |
| ISO | KISO | Kinston Regional Jetport At Stallings Field | Kinston | Medium |
| IRK | KIRK | Kirksville Regional Airport | Kirksville | Medium |
| LMT | KLMT | Crater Lake-Klamath Regional Airport | Klamath Falls | Medium |
| KLW | PAKW | Klawock Airport | Klawock | Medium |
| SZL | KSZL | Whiteman Air Force Base | Knob Noster | Medium |
| ADQ | PADQ | Kodiak Airport | Kodiak | Medium |
| OTZ | PAOT | Ralph Wien Memorial Airport | Kotzebue | Medium |
| LSE | KLSE | La Crosse Regional Airport | La Crosse | Medium |
| LFT | KLFT | Lafayette Regional Airport | Lafayette | Medium |
| JHM | PHJH | Kapalua Airport | Lahaina | Medium |
| LCH | KLCH | Lake Charles Regional Airport | Lake Charles | Medium |
| HII | KHII | Lake Havasu City Airport | Lake Havasu City | Medium |
| NEL | KNEL | Lakehurst Maxfield Field Airport | Lakehurst | Medium |
| LAL | KLAL | Lakeland Linder International Airport | Lakeland | Medium |
| LAA | KLAA | Southeast Colorado Regional Airport | Lamar | Medium |
| LNY | PHNY | Lanai Airport | Lanai City | Medium |
| LNS | KLNS | Lancaster Airport | Lancaster | Medium |
| WJF | KWJF | General William J Fox Airfield | Lancaster | Medium |
| LND | KLND | Hunt Field | Lander | Medium |
| LAN | KLAN | Capital Region International Airport | Lansing | Medium |
| LAR | KLAR | Laramie Regional Airport | Laramie | Medium |
| LRD | KLRD | Laredo International Airport | Laredo | Medium |
| LRU | KLRU | Las Cruces International Airport | Las Cruces | Medium |
| LSV | KLSV | Nellis Air Force Base | Las Vegas | Medium |
| LVS | KLVS | Las Vegas Municipal Airport | Las Vegas | Medium |
| VGT | KVGT | North Las Vegas Airport | Las Vegas | Medium |
| LBE | KLBE | Arnold Palmer Regional Airport | Latrobe | Medium |
| LWM | KLWM | Lawrence Municipal Airport | Lawrence | Medium |
| LAW | KLAW | Lawton Fort Sill Regional Airport | Lawton | Medium |
| LEB | KLEB | Lebanon Municipal Airport | Lebanon | Medium |
| LEE | KLEE | Leesburg International Airport | Leesburg | Medium |
| NLC | KNLC | Lemoore Naval Air Station (Reeves Field) Airport | Lemoore | Medium |
| LWB | KLWB | Greenbrier Valley Airport | Lewisburg | Medium |
| LWS | KLWS | Lewiston Nez Perce County Airport | Lewiston | Medium |
| LWT | KLWT | Lewistown Municipal Airport | Lewistown | Medium |
| LEX | KLEX | Blue Grass Airport | Lexington | Medium |
| LBL | KLBL | Liberal Mid-America Regional Airport | Liberal | Medium |
| LNK | KLNK | Lincoln Airport | Lincoln | Medium |
| LIT | KLIT | Bill & Hillary Clinton National Airport/Adams Field | Little Rock | Medium |
| LVM | KLVM | Mission Field | Livingston | Medium |
| LGU | KLGU | Logan-Cache Airport | Logan | Medium |
| VBG | KVBG | Vandenberg Space Force Base | Lompoc | Medium |
| LOZ | KLOZ | London-Corbin Airport/Magee Field | London | Medium |
| GGG | KGGG | East Texas Regional Airport | Longview | Medium |
| LOU | KLOU | Bowman Field | Louisville | Medium |
| FNL | KFNL | Northern Colorado Regional Airport | Loveland | Medium |
| LOL | KLOL | Derby Field | Lovelock | Medium |
| LBB | KLBB | Lubbock Preston Smith International Airport | Lubbock | Medium |
| LFK | KLFK | Angelina County Airport | Lufkin | Medium |
| LBT | KLBT | Lumberton Regional Airport | Lumberton | Medium |
| LYH | KLYH | Lynchburg Regional Airport - Preston Glenn Field | Lynchburg | Medium |
| MCN | KMCN | Middle Georgia Regional Airport | Macon | Medium |
| MSN | KMSN | Dane County Regional Truax Field | Madison | Medium |
| MMH | KMMH | Mammoth Yosemite Airport | Mammoth Lakes | Medium |
| MNZ | KHEF | Washington Manassas Harry P. Davis Field | Manassas | Medium |
| MHT | KMHT | Manchester-Boston Regional Airport | Manchester | Medium |
| MHK | KMHK | Manhattan Regional Airport | Manhattan | Medium |
| MFD | KMFD | Mansfield Lahm Regional Airport | Mansfield | Medium |
| MTH | KMTH | Florida Keys Marathon International Airport | Marathon | Medium |
| MGE | KMGE | Dobbins Air Reserve Base | Marietta | Medium |
| MWA | KMWA | Veterans Airport of Southern Illinois | Marion | Medium |
| MRB | KMRB | Eastern WV Regional Airport/Shepherd Field | Martinsburg | Medium |
| MYV | KMYV | Yuba County Airport | Marysville | Medium |
| MCW | KMCW | Mason City Municipal Airport | Mason City | Medium |
| MSS | KMSS | Massena International Airport Richards Field | Massena | Medium |
| MLC | KMLC | Mc Alester Regional Airport | Mc Alester | Medium |
| MFE | KMFE | McAllen Miller International Airport | McAllen | Medium |
| MYL | KMYL | McCall Municipal Airport | McCall | Medium |
| MCB | KMCB | McComb-Pike County Airport / John E Lewis Field | McComb | Medium |
| MCK | KMCK | McCook Ben Nelson Regional Airport | McCook | Medium |
| MCG | PAMC | McGrath Airport | McGrath | Medium |
| MFR | KMFR | Rogue Valley International-Medford Airport | Medford | Medium |
| MYU | PAMY | Mekoryuk Airport | Mekoryuk | Medium |
| MLB | KMLB | Melbourne Orlando International Airport | Melbourne | Medium |
| MCE | KMCE | Merced Regional Macready Field | Merced | Medium |
| MER | KMER | Castle Airport | Merced | Medium |
| DRA | KDRA | Desert Rock Airport | Mercury | Medium |
| MEI | KMEI | Key Field / Meridian Regional Airport | Meridian | Medium |
| AZA | KIWA | Mesa Gateway Airport | Mesa | Medium |
| MFH | | Mesquite Airport | Mesquite | Medium |
| ANN | PANT | Annette Island Airport | Metlakatla | Medium |
| OPF | KOPF | Miami-Opa Locka Executive Airport | Miami | Medium |
| TMB | KTMB | Miami Executive Airport | Miami | Medium |
| MGC | KMGC | Michigan City Municipal Airport | Michigan City | Medium |
| MAF | KMAF | Midland International Air and Space Port Airport | Midland | Medium |
| MLS | KMLS | Miles City Airport - Frank Wiley Field | Miles City | Medium |
| NQA | KNQA | Millington-Memphis Airport | Millington | Medium |
| MIV | KMIV | Millville Municipal Airport | Millville | Medium |
| NSE | KNSE | Whiting Field Naval Air Station - North | Milton | Medium |
| MWL | KMWL | Mineral Wells Regional Airport | Mineral Wells | Medium |
| MIB | KMIB | Minot Air Force Base | Minot | Medium |
| MOT | KMOT | Minot International Airport | Minot | Medium |
| MSO | KMSO | Missoula Montana Airport | Missoula | Medium |
| CNY | KCNY | Canyonlands Regional Airport | Moab | Medium |
| BFM | KBFM | Mobile Downtown Airport | Mobile | Medium |
| MOB | KMOB | Mobile Regional Airport | Mobile | Medium |
| MBG | KMBG | Mobridge Municipal Airport | Mobridge | Medium |
| MOD | KMOD | Modesto City Co-Harry Sham Field | Modesto | Medium |
| MHV | KMHV | Mojave Air & Space Port Airport | Mojave | Medium |
| MLI | KMLI | Quad City International Airport | Moline | Medium |
| MLU | KMLU | Monroe Regional Airport | Monroe | Medium |
| MRY | KMRY | Monterey Regional Airport | Monterey | Medium |
| MGM | KMGM | Montgomery Regional (Dannelly Field) Airport | Montgomery | Medium |
| MXF | KMXF | Maxwell Air Force Base | Montgomery | Medium |
| MTJ | KMTJ | Montrose Regional Airport | Montrose | Medium |
| MGW | KMGW | Morgantown Municipal Airport Walter L. (Bill) Hart Field | Morgantown | Medium |
| MMU | KMMU | Morristown Municipal Airport | Morristown | Medium |
| PIB | KPIB | Hattiesburg Laurel Regional Airport | Moselle | Medium |
| MWH | KMWH | Grant County International Airport | Moses Lake | Medium |
| CWA | KCWA | Central Wisconsin Airport | Mosinee | Medium |
| MTC | KMTC | Selfridge Air National Guard Base Airport | Mount Clemens | Medium |
| MUO | KMUO | Mountain Home Air Force Base | Mountain Home | Medium |
| WMH | KBPK | Ozark Regional Airport | Mountain Home | Medium |
| NUQ | KNUQ | Moffett Federal Airfield | Mountain View | Medium |
| MIE | KMIE | Delaware County Johnson Field | Muncie | Medium |
| MDH | KMDH | Southern Illinois Airport | Murphysboro | Medium |
| MSL | KMSL | Northwest Alabama Regional Airport | Muscle Shoals | Medium |
| MKG | KMKG | Muskegon County Airport | Muskegon | Medium |
| ACK | KACK | Nantucket Memorial Airport | Nantucket | Medium |
| APF | KAPF | Naples Municipal Airport | Naples | Medium |
| EED | KEED | Needles Airport | Needles | Medium |
| ENN | PANN | Nenana Municipal Airport | Nenana | Medium |
| EWB | KEWB | New Bedford Regional Airport | New Bedford | Medium |
| EWN | KEWN | Coastal Carolina Regional Airport | New Bern | Medium |
| HVN | KHVN | Tweed New Haven Airport | New Haven | Medium |
| ARA | KARA | Acadiana Regional Airport | New Iberia | Medium |
| NBG | KNBG | New Orleans NAS JRB/Alvin Callender Field | New Orleans | Medium |
| NEW | KNEW | Lakefront Airport | New Orleans | Medium |
| RNH | KRNH | New Richmond Regional Airport | New Richmond | Medium |
| SWF | KSWF | New York Stewart International Airport | Newburgh | Medium |
| NPT | KUUU | Newport State Airport | Newport | Medium |
| ONP | KONP | Newport Municipal Airport | Newport | Medium |
| PHF | KPHF | Newport News Williamsburg International Airport | Newport News | Medium |
| FAF | KFAF | Felker Army Air Field | Newport News (Fort Eustis) | Medium |
| IAG | KIAG | Niagara Falls International Airport | Niagara Falls | Medium |
| OLS | KOLS | Nogales International Airport | Nogales | Medium |
| OME | PAOM | Nome Airport | Nome | Medium |
| NGU | KNGU | Norfolk Naval Station (Chambers Field) | Norfolk | Medium |
| OFK | KOFK | Karl Stefan Memorial Airport | Norfolk | Medium |
| OTH | KOTH | Southwest Oregon Regional Airport | North Bend | Medium |
| NCO | KOQU | Quonset State Airport | North Kingstown | Medium |
| CRE | KCRE | Grand Strand Airport | North Myrtle Beach | Medium |
| LBF | KLBF | North Platte Regional Airport Lee Bird Field | North Platte | Medium |
| ORT | PAOR | Northway Airport | Northway | Medium |
| OWD | KOWD | Norwood Memorial Airport | Norwood | Medium |
| NUI | PAQT | Nuiqsut Airport | Nuiqsut | Medium |
| NUW | KNUW | Whidbey Island Naval Air Station (Ault Field) | Oak Harbor | Medium |
| OCE | KOXB | Ocean City Municipal Airport | Ocean City | Medium |
| OCN | KOKB | Oceanside Municipal Airport | Oceanside | Medium |
| HIF | KHIF | Hill Air Force Base | Ogden | Medium |
| OGD | KOGD | Ogden Hinckley Airport | Ogden | Medium |
| OGS | KOGS | Ogdensburg International Airport | Ogdensburg | Medium |
| TIK | KTIK | Tinker Air Force Base | Oklahoma City | Medium |
| OLM | KOLM | Olympia Regional Airport | Olympia | Medium |
| OFF | KOFF | Offutt Air Force Base | Omaha | Medium |
| OGB | KOGB | Orangeburg Municipal Airport | Orangeburg | Medium |
| ONO | KONO | Ontario Municipal Airport | Oregon | Medium |
| ISM | KISM | Kissimmee Gateway Airport | Orlando | Medium |
| ORL | KORL | Orlando Executive Airport | Orlando | Medium |
| OSH | KOSH | Wittman Regional Airport | Oshkosh | Medium |
| OTM | KOTM | Ottumwa Regional Airport | Ottumwa | Medium |
| OWB | KOWB | Owensboro Daviess County Airport | Owensboro | Medium |
| UOX | KUOX | University Oxford Airport | Oxford | Medium |
| OXR | KOXR | Oxnard Airport | Oxnard | Medium |
| PAH | KPAH | Barkley Regional Airport | Paducah | Medium |
| PGA | KPGA | Page Municipal Airport | Page | Medium |
| TRM | KTRM | Jacqueline Cochran Regional Airport | Palm Springs | Medium |
| PMD | KPMD | Palmdale Regional Airport / USAF Plant 42 Airport | Palmdale | Medium |
| PAQ | PAAQ | Warren "Bud" Woods Palmer Municipal Airport | Palmer | Medium |
| PAO | KPAO | Palo Alto Airport | Palo Alto | Medium |
| PAM | KPAM | Tyndall Air Force Base | Panama City | Medium |
| ECP | KECP | Northwest Florida Beaches International Airport | Panama City Beach | Medium |
| PRX | KPRX | Cox Field | Paris | Medium |
| PKB | KPKB | Mid Ohio Valley Regional Airport | Parkersburg (Williamstown) | Medium |
| PSC | KPSC | Tri Cities Airport | Pasco | Medium |
| PRB | KPRB | Paso Robles Municipal Airport | Paso Robles | Medium |
| NHK | KNHK | Patuxent River Naval Air Station (Trapnell Field) | Patuxent River | Medium |
| PLN | KPLN | Pellston Regional Airport of Emmet County Airport | Pellston | Medium |
| PDT | KPDT | Eastern Oregon Regional Airport at Pendleton | Pendleton | Medium |
| NPA | KNPA | Naval Air Station Pensacola Forrest Sherman Field | Pensacola | Medium |
| PIA | KPIA | General Wayne A. Downing Peoria International Airport | Peoria | Medium |
| GUS | KGUS | Grissom Air Reserve Base | Peru | Medium |
| PSG | PAPG | Petersburg James A Johnson Airport | Petersburg | Medium |
| PNE | KPNE | Northeast Philadelphia Airport | Philadelphia | Medium |
| PIR | KPIR | Pierre Regional Airport | Pierre | Medium |
| PBF | KPBF | Pine Bluff Regional Airport, Grider Field | Pine Bluff | Medium |
| PWY | KPNA | Ralph Wenz Field | Pinedale | Medium |
| AGC | KAGC | Allegheny County Airport | Pittsburgh | Medium |
| PTU | PAPM | Platinum Airport | Platinum | Medium |
| PBG | KPBG | Plattsburgh International Airport | Plattsburgh | Medium |
| PIH | KPIH | Pocatello Regional Airport | Pocatello | Medium |
| PIZ | PPIZ | Point Lay LRRS Airport | Point Lay | Medium |
| NTD | KNTD | Point Mugu Naval Air Station (Naval Base Ventura Co) | Point Mugu | Medium |
| PNC | KPNC | Ponca City Regional Airport | Ponca City | Medium |
| PTK | KPTK | Oakland County International Airport | Pontiac | Medium |
| CLM | KCLM | William R Fairchild International Airport | Port Angeles | Medium |
| KPC | PAPC | Port Clarence Coast Guard Station | Port Clarence | Medium |
| PTH | PAPH | Port Heiden Airport | Port Heiden | Medium |
| HIO | KHIO | Portland Hillsboro Airport | Portland | Medium |
| TTD | KTTD | Portland Troutdale Airport | Portland | Medium |
| PSM | KPSM | Portsmouth International Airport at Pease | Portsmouth | Medium |
| POU | KPOU | Dutchess County Airport | Poughkeepsie | Medium |
| PRC | KPRC | Prescott Regional Airport - Ernest A. Love Field | Prescott | Medium |
| PQI | KPQI | Presque Isle International Airport | Presque Isle | Medium |
| PVU | KPVU | Provo Municipal Airport | Provo | Medium |
| PUB | KPUB | Pueblo Memorial Airport | Pueblo | Medium |
| PUW | KPUW | Pullman-Moscow Regional Airport | Pullman | Medium |
| PGD | KPGD | Punta Gorda Airport | Punta Gorda | Medium |
| NYG | KNYG | Quantico Marine Corps Airfield / Turner Field | Quantico | Medium |
| UIN | KUIN | Quincy Regional Airport Baldwin Field | Quincy | Medium |
| RAP | KRAP | Rapid City Regional Airport | Rapid City | Medium |
| RCA | KRCA | Ellsworth Air Force Base | Rapid City | Medium |
| RWL | KRWL | Rawlins Municipal Airport/Harvey Field | Rawlins | Medium |
| RDG | KRDG | Reading Regional Airport (Carl A Spaatz Field) | Reading | Medium |
| RBL | KRBL | Red Bluff Municipal Airport | Red Bluff | Medium |
| RDD | KRDD | Redding Municipal Airport | Redding | Medium |
| RDM | KRDM | Roberts Field | Redmond | Medium |
| HUA | KHUA | Redstone Army Air Field | Redstone Arsnl Huntsville | Medium |
| RWF | KRWF | Redwood Falls Municipal Airport | Redwood Falls | Medium |
| RHI | KRHI | Rhinelander Oneida County Airport | Rhinelander | Medium |
| OAJ | KOAJ | Albert J Ellis Airport | Richlands | Medium |
| RIL | KRIL | Garfield County Regional Airport | Rifle | Medium |
| RAL | KRAL | Riverside Municipal Airport | Riverside | Medium |
| RIV | KRIV | March Air Reserve Base | Riverside | Medium |
| RIW | KRIW | Central Wyoming Regional Airport | Riverton | Medium |
| ROA | KROA | Roanoke–Blacksburg Regional Airport | Roanoke | Medium |
| RST | KRST | Rochester International Airport | Rochester | Medium |
| RKS | KRKS | Southwest Wyoming Regional Airport | Rock Springs | Medium |
| RKD | KRKD | Knox County Regional Airport | Rockland | Medium |
| RWI | KRWI | Rocky Mount Wilson Regional Airport | Rocky Mount | Medium |
| RME | KRME | Griffiss International Airport | Rome | Medium |
| RMG | KRMG | Richard B Russell Airport | Rome | Medium |
| ROW | KROW | Roswell Air Center Airport | Roswell | Medium |
| RBY | PARY | Ruby Airport | Ruby | Medium |
| RSL | KRSL | Russell Municipal Airport | Russell | Medium |
| RUT | KRUT | Rutland - Southern Vermont Regional Airport | Rutland | Medium |
| MCC | KMCC | McClellan Airfield | Sacramento | Medium |
| MHR | KMHR | Sacramento Mather Airport | Sacramento | Medium |
| SAC | KSAC | Sacramento Executive Airport | Sacramento | Medium |
| STC | KSTC | Saint Cloud Regional Airport | Saint Cloud | Medium |
| STP | KSTP | Saint Paul Downtown Holman Field | Saint Paul | Medium |
| SLE | KSLE | Salem-Willamette Valley Airport/McNary Field | Salem | Medium |
| SLN | KSLN | Salina Municipal Airport | Salina | Medium |
| SNS | KSNS | Salinas Municipal Airport | Salinas | Medium |
| SBY | KSBY | Salisbury Ocean City Wicomico Regional Airport | Salisbury | Medium |
| SMN | KSMN | Lemhi County Airport | Salmon | Medium |
| SJT | KSJT | San Angelo Regional Mathis Field | San Angelo | Medium |
| SKF | KSKF | Lackland Air Force Base | San Antonio | Medium |
| SSF | KSSF | Stinson Municipal Airport | San Antonio | Medium |
| SQL | KSQL | San Carlos Airport | San Carlos | Medium |
| NKX | KNKX | Miramar Marine Corps Air Station - Mitscher Field | San Diego | Medium |
| NZY | KNZY | North Island Naval Air Station-Halsey Field | San Diego | Medium |
| SDM | KSDM | Brown Field Municipal Airport | San Diego | Medium |
| SBP | KSBP | San Luis County Regional Airport | San Luis Obispo | Medium |
| SDP | PASD | Sand Point Airport | Sand Point | Medium |
| SBA | KSBA | Santa Barbara Municipal Airport | Santa Barbara | Medium |
| SAF | KSAF | Santa Fe Municipal Airport | Santa Fe | Medium |
| SMX | KSMX | Santa Maria Public Airport Captain G Allan Hancock Field | Santa Maria | Medium |
| SMO | KSMO | Santa Monica Municipal Airport | Santa Monica | Medium |
| STS | KSTS | Charles M. Schulz Sonoma County Airport | Santa Rosa | Medium |
| SLK | KSLK | Adirondack Regional Airport | Saranac Lake | Medium |
| SVN | KSVN | Hunter Army Air Field | Savannah | Medium |
| SVA | PASA | Savoonga Airport | Savoonga | Medium |
| CMI | KCMI | University of Illinois Willard Airport | Savoy | Medium |
| SCH | KSCH | Schenectady County Airport | Schenectady | Medium |
| BFF | KBFF | Western Neb. Rgnl/William B. Heilig Airport | Scottsbluff | Medium |
| BFI | KBFI | King County International Airport - Boeing Field | Seattle | Medium |
| SWD | PAWD | Seward Airport | Seward | Medium |
| SYA | PASY | Eareckson Air Station | Shemya | Medium |
| SHR | KSHR | Sheridan County Airport | Sheridan | Medium |
| SOW | KSOW | Show Low Regional Airport | Show Low | Medium |
| SHV | KSHV | Shreveport Regional Airport | Shreveport | Medium |
| SDY | KSDY | Sidney - Richland Regional Airport | Sidney | Medium |
| SNY | KSNY | Sidney Municipal Airport Lloyd W Carr Field | Sidney | Medium |
| SVC | KSVC | Grant County Airport | Silver City | Medium |
| SUX | KSUX | Sioux Gateway Airport / Brigadier General Bud Day Field | Sioux City | Medium |
| FSD | KFSD | Sioux Falls Regional Airport | Sioux Falls | Medium |
| SIT | PASI | Sitka Rocky Gutierrez Airport | Sitka | Medium |
| MQY | KMQY | Smyrna Airport | Smyrna | Medium |
| SXQ | PASX | Soldotna Airport | Soldotna | Medium |
| SME | KSME | Lake Cumberland Regional Airport | Somerset | Medium |
| SBN | KSBN | South Bend International Airport | South Bend | Medium |
| TVL | KTVL | Lake Tahoe Airport | South Lake Tahoe | Medium |
| SVW | PASV | Sparrevohn LRRS Airport | Sparrevohn | Medium |
| SFF | KSFF | Felts Field | Spokane | Medium |
| SKA | KSKA | Fairchild Air Force Base | Spokane | Medium |
| SGF | KSGF | Springfield Branson National Airport | Springfield | Medium |
| SGH | KSGH | Springfield-Beckley Municipal Airport | Springfield | Medium |
| SPI | KSPI | Abraham Lincoln Capital Airport | Springfield | Medium |
| UST | KSGJ | Northeast Florida Regional Airport | St Augustine | Medium |
| SGU | KSGU | St George Regional Airport | St George | Medium |
| STG | PAPB | St George Airport | St George | Medium |
| STJ | KSTJ | Rosecrans Memorial Airport | St Joseph | Medium |
| SUS | KSUS | Spirit of St Louis Airport | St Louis | Medium |
| SNP | PASN | St Paul Island Airport | St Paul Island | Medium |
| SSI | KSSI | St Simons Island Airport | St Simons Island | Medium |
| SCE | KUNV | State College Regional Airport | State College | Medium |
| SWO | KSWO | Stillwater Regional Airport | Stillwater | Medium |
| SCK | KSCK | Stockton Metropolitan Airport | Stockton | Medium |
| SSC | KSSC | Shaw Air Force Base | Sumter | Medium |
| TCM | KTCM | McChord Air Force Base | Tacoma | Medium |
| TIW | KTIW | Tacoma Narrows Airport | Tacoma | Medium |
| TLJ | PATL | Tatalina LRRS Airport | Takotna | Medium |
| TKA | PATK | Talkeetna Airport | Talkeetna | Medium |
| TLH | KTLH | Tallahassee International Airport | Tallahassee | Medium |
| MCF | KMCF | MacDill Air Force Base | Tampa | Medium |
| TSM | KSKX | Taos Regional Airport | Taos | Medium |
| TEX | KTEX | Telluride Regional Airport | Telluride | Medium |
| TPL | KTPL | Draughon Miller Central Texas Regional Airport | Temple | Medium |
| HUF | | Terre Haute Regional Airport, Hulman Field | Terre Haute | Medium |
| TEB | KTEB | Teterboro Airport | Teterboro | Medium |
| TXK | KTXK | Texarkana Regional Airport (Webb Field) | Texarkana | Medium |
| TVF | KTVF | Thief River Falls Regional Airport | Thief River Falls | Medium |
| TIX | KTIX | Space Coast Regional Airport | Titusville | Medium |
| TOL | KTOL | Eugene F. Kranz Toledo Express Airport | Toledo | Medium |
| TPH | KTPH | Tonopah Airport | Tonopah | Medium |
| FOE | KFOE | Topeka Regional Airport | Topeka | Medium |
| TOP | KTOP | Philip Billard Municipal Airport | Topeka | Medium |
| TVC | KTVC | Cherry Capital Airport | Traverse City | Medium |
| TOI | KTOI | Troy Municipal Airport at N Kenneth Campbell Field | Troy | Medium |
| TKF | KTRK | Truckee Tahoe Airport | Truckee | Medium |
| TCS | KTCS | Truth or Consequences Municipal Airport | Truth or Consequences | Medium |
| DMA | KDMA | Davis Monthan Air Force Base | Tucson | Medium |
| TCC | KTCC | Tucumcari Municipal Airport | Tucumcari | Medium |
| RVS | KRVS | Tulsa Riverside Airport | Tulsa | Medium |
| TUP | KTUP | Tupelo Regional Airport | Tupelo | Medium |
| TCL | KTCL | Tuscaloosa National Airport | Tuscaloosa | Medium |
| TWF | KTWF | Joslin Field Magic Valley Regional Airport | Twin Falls | Medium |
| TYR | KTYR | Tyler Pounds Regional Airport | Tyler | Medium |
| UKI | KUKI | Ukiah Municipal Airport | Ukiah | Medium |
| UNK | PAUN | Unalakleet Airport | Unalakleet | Medium |
| DUT | PADU | Tom Madsen (Dutch Harbor) Airport | Unalaska | Medium |
| RND | KRND | Randolph Air Force Base | Universal City | Medium |
| UTO | PAIM | Indian Mountain LRRS Airport | Utopia Creek | Medium |
| BRW | PABR | Wiley Post Will Rogers Memorial Airport | Utqiaġvik | Medium |
| VDZ | PAVD | Valdez Pioneer Field | Valdez | Medium |
| VAD | KVAD | Moody Air Force Base | Valdosta | Medium |
| VLD | KVLD | Valdosta Regional Airport | Valdosta | Medium |
| VTN | KVTN | Miller Field | Valentine | Medium |
| VPS | KVPS | Destin-Fort Walton Beach Airport | Valparaiso | Medium |
| VPZ | KVPZ | Porter County Municipal Airport | Valparaiso | Medium |
| VNY | KVNY | Van Nuys Airport | Van Nuys | Medium |
| VEL | KVEL | Vernal Regional Airport | Vernal | Medium |
| VRB | KVRB | Vero Beach Regional Airport | Vero Beach | Medium |
| VCT | KVCT | Victoria Regional Airport | Victoria | Medium |
| NTU | KNTU | Oceana Naval Air Station | Virginia Beach | Medium |
| VIS | KVIS | Visalia Municipal Airport | Visalia | Medium |
| ACT | KACT | Waco Regional Airport | Waco | Medium |
| MUE | PHMU | Waimea Kohala Airport | Waimea (Kamuela) | Medium |
| AIN | PAWI | Wainwright Airport | Wainwright | Medium |
| ALW | KALW | Walla Walla Regional Airport | Walla Walla | Medium |
| WRB | KWRB | Robins Air Force Base | Warner Robins | Medium |
| WWA | PAWS | Wasilla Airport | Wasilla | Medium |
| ALO | KALO | Waterloo Regional Airport | Waterloo | Medium |
| ART | KART | Watertown International Airport | Watertown | Medium |
| ATY | KATY | Watertown Regional Airport | Watertown | Medium |
| AUW | KAUW | Wausau Downtown Airport | Wausau | Medium |
| EAT | KEAT | Pangborn Memorial Airport | Wenatchee | Medium |
| ENV | KENV | Wendover Airport | Wendover | Medium |
| LAF | KLAF | Purdue University Airport | West Lafayette | Medium |
| WYS | KWYS | Yellowstone Airport | West Yellowstone | Medium |
| WST | KWST | Westerly State Airport | Westerly | Medium |
| BAF | KBAF | Westfield-Barnes Regional Airport | Westfield | Medium |
| SHD | KSHD | Shenandoah Valley Regional Airport | Weyers Cave | Medium |
| HLG | KHLG | Wheeling Ohio County Airport | Wheeling | Medium |
| HPN | KHPN | Westchester County Airport | White Plains | Medium |
| IAB | KIAB | McConnell Air Force Base | Wichita | Medium |
| ICT | KICT | Wichita Dwight D. Eisenhower National Airport | Wichita | Medium |
| SPS | KSPS | Wichita Falls Municipal Airport / Sheppard Air Force Base | Wichita Falls | Medium |
| WWD | KWWD | Cape May County Airport | Wildwood | Medium |
| AVP | KAVP | Wilkes-Barre/Scranton International Airport | Wilkes-Barre/Scranton | Medium |
| IPT | KIPT | Williamsport Regional Airport | Williamsport | Medium |
| XWA | KXWA | Williston Basin International Airport | Williston | Medium |
| ILG | KILG | Wilmington Airport | Wilmington | Medium |
| ILM | KILM | Wilmington International Airport | Wilmington | Medium |
| ILN | KILN | Wilmington Airpark | Wilmington | Medium |
| INK | KINK | Winkler County Airport | Wink | Medium |
| WMC | KWMC | Winnemucca Municipal Airport | Winnemucca | Medium |
| INW | KINW | Winslow Lindbergh Regional Airport | Winslow | Medium |
| INT | KINT | Smith Reynolds Airport | Winston Salem | Medium |
| OLF | KOLF | L M Clayton Airport | Wolf Point | Medium |
| WWR | KWWR | West Woodward Airport | Woodward | Medium |
| ORH | KORH | Worcester Regional Airport | Worcester | Medium |
| WRL | KWRL | Worland Municipal Airport | Worland | Medium |
| WRG | PAWG | Wrangell Airport | Wrangell | Medium |
| WRI | KWRI | Mc Guire Air Force Base | Wrightstown | Medium |
| YKM | KYKM | Yakima Air Terminal McAllister Field | Yakima | Medium |
| YAK | PAYA | Yakutat Airport | Yakutat | Medium |
| YKN | KYKN | Chan Gurney Municipal Airport | Yankton | Medium |
| YNG | KYNG | Youngstown Warren Regional Airport | Youngstown/Warren | Medium |
| YUM | KNYL | Yuma International Airport / Marine Corps Air Station Yuma | Yuma | Medium |
| ZZV | KZZV | Zanesville Municipal Airport | Zanesville | Medium |
