4B / TUP 4B airline code: Aviastar-TU
4B is the IATA airline code for Aviastar-TU, based in Russia. Its ICAO airline code is TUP.
Aviastar-TU codes
| IATA code | 4B |
|---|---|
| ICAO code | TUP |
| Airline | Aviastar-TU |
| Country | Russia |
| Status | Listed as operating (data checked 1 October 2026) |
Source: the airline database behind Easy PNR Converter (Wikidata and OpenFlights), checked against Wikidata and Wikipedia on 1 October 2026. IATA codes of airlines that stop flying can later be given to another airline.
How 4B appears in a PNR
In an Amadeus, Sabre, Galileo or Worldspan flight segment the two-character airline code comes first, directly before the flight number, so every flight sold under this code starts with 4B. Codeshare flights carry the marketing airline's code, so the airline operating the aircraft can be a different one. Paste a PNR into the free PNR converter and 4B is shown as Aviastar-TU with its logo, next to local times and the true flight duration.
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- A4 Azimuth
- ZF Azur Air
- 4G Gazprom Avia
- GH Globus
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