AS Airline Code, Alaska Airlines
AS is the IATA airline code for Alaska Airlines. Its ICAO code is ASA and its radio callsign is "Alaska".
What airline is AS?
AS is the IATA airline code for Alaska Airlines. Its ICAO code is ASA and its radio callsign is "Alaska".
With 530 scheduled routes in the open dataset, it is one of the most connected carriers in the world, ranked number 25 by routes. You will see AS as the two-character prefix on its flight numbers, for example AS123.
| IATA airline code | AS |
|---|---|
| ICAO airline code | ASA |
| Radio callsign | Alaska |
| Country | Not listed |
| Alliance | oneworld |
| Scheduled routes | 530 (ranked #25) |
| Most routes at | SEA Seattle |
| Status | Active |
What is the airline code for Alaska Airlines?
The IATA airline code for Alaska Airlines is AS, and its ICAO code is ASA. The two-character IATA code prefixes the carrier's flight numbers, for example AS123.
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 AS code comes from
AS pairs the A of Alaska with an S, generally explained by the fact that the obvious two-letter combinations starting with A were already taken, AA by American among them. The carrier joined oneworld in March 2021, making AS one of the newer major-alliance codes.
Alaska is the dominant carrier on the US West Coast and in the state of Alaska, and grew further by acquiring Virgin America in 2016 and Hawaiian Airlines in 2024.
More on how these identifiers work in what an IATA code is and airline callsigns.
What are Alaska Airlines's hub airports?
Alaska Airlines (AS) concentrates its network on SEA (Seattle), PDX (Portland), ANC (Anchorage), LAX (Los Angeles), SFO (San Francisco).
Which airport does Alaska Airlines serve most?
Alaska Airlines (AS) appears on more routes at SEA, Seattle, than at any other airport in the open route dataset.
The airports Alaska Airlines appears at most often in that dataset, most routes first:
Routes flown by Alaska Airlines
The busiest pairs Alaska Airlines (AS) 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 Alaska Airlines?
Alaska Airlines uses the ICAO airline code ASA and the radio callsign "Alaska". Flight plans and air traffic control use ASA, while tickets and schedules use AS.
What is the radio callsign for Alaska Airlines?
Air traffic control refers to Alaska Airlines by the radio callsign "Alaska".
What is the abbreviation for Alaska Airlines?
The two-character IATA abbreviation for Alaska Airlines is AS, and its three-letter ICAO code is ASA.
How many routes does Alaska Airlines fly?
The open route dataset lists 530 route entries for Alaska Airlines, codeshare listings included, which ranks the carrier number 25 by that count. The route table below shows only the pairs Alaska Airlines is listed as operating.
Is Alaska Airlines in an airline alliance?
Alaska Airlines (AS) is a member of oneworld, the global airline alliance founded in 1999. Membership means shared lounges, frequent flyer recognition and connecting networks across the member carriers.