OS Airline Code, Austrian Airlines
OS is the IATA airline code for Austrian Airlines, based in Austria. Its ICAO code is AUA and its radio callsign is "Austrian".
What airline is OS?
OS is the IATA airline code for Austrian Airlines, based in Austria. Its ICAO code is AUA and its radio callsign is "Austrian".
The open dataset lists 240 scheduled routes for the carrier, placing it at number 69 among airlines worldwide. You will see OS as the two-character prefix on its flight numbers, for example OS123.
| IATA airline code | OS |
|---|---|
| ICAO airline code | AUA |
| Radio callsign | Austrian |
| Country | Austria |
| Alliance | Star Alliance |
| Scheduled routes | 240 (ranked #69) |
| Most routes at | BKK Bangkok |
| Status | Active |
What is the airline code for Austrian Airlines?
The IATA airline code for Austrian Airlines is OS, and its ICAO code is AUA. The two-character IATA code prefixes the carrier's flight numbers, for example OS123.
IATA airline codes are two characters and can reuse letters over time, so a retired airline's code may later be assigned to another carrier. ICAO codes are three letters and are more stable, which is why flight plans use them.
Where the OS code comes from
OS identifies Austrian Airlines, and the letters are usually read as echoing Oesterreich, the German name of Austria. Austrian joined Star Alliance in 2000 and has been part of the Lufthansa Group since 2009, keeping its own code and its Vienna hub.
More on how these identifiers work in what an IATA code is and airline callsigns.
What are Austrian Airlines's hub airports?
Austrian Airlines (OS) concentrates its network on VIE (Vienna).
Which airport does Austrian Airlines serve most?
Austrian Airlines (OS) appears on more routes at BKK, Bangkok, than at any other airport in the open route dataset.
The airports Austrian Airlines appears at most often in that dataset, most routes first:
Routes flown by Austrian Airlines
The busiest pairs Austrian Airlines (OS) is listed as operating in the open route dataset (codeshare-only listings excluded), with distance and typical flight time:
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Frequently asked questions
What is the ICAO code for Austrian Airlines?
Austrian Airlines uses the ICAO airline code AUA and the radio callsign "Austrian". Flight plans and air traffic control use AUA, while tickets and schedules use OS.
What is the radio callsign for Austrian Airlines?
Air traffic control refers to Austrian Airlines by the radio callsign "Austrian".
What country is Austrian Airlines based in?
Austrian Airlines (OS) is based in Austria.
What is the abbreviation for Austrian Airlines?
The two-character IATA abbreviation for Austrian Airlines is OS, and its three-letter ICAO code is AUA.
How many routes does Austrian Airlines fly?
The open route dataset lists 240 route entries for Austrian Airlines, codeshare listings included, which ranks the carrier number 69 by that count. The route table below shows only the pairs Austrian Airlines is listed as operating.
Is Austrian Airlines in an airline alliance?
Austrian Airlines (OS) is a member of Star Alliance, the global airline alliance founded in 1997. Membership means shared lounges, frequent flyer recognition and connecting networks across the member carriers.