SK Airline Code, Scandinavian Airlines System
SK is the IATA airline code for Scandinavian Airlines System, based in Sweden. Its ICAO code is SAS and its radio callsign is "Scandinavian".
What airline is SK?
SK is the IATA airline code for Scandinavian Airlines System, based in Sweden. Its ICAO code is SAS and its radio callsign is "Scandinavian".
The open dataset lists 504 scheduled routes for the carrier, placing it at number 26 among airlines worldwide. You will see SK as the two-character prefix on its flight numbers, for example SK123.
| IATA airline code | SK |
|---|---|
| ICAO airline code | SAS |
| Radio callsign | Scandinavian |
| Country | Sweden |
| Alliance | SkyTeam |
| Scheduled routes | 504 (ranked #26) |
| Most routes at | ARN Stockholm |
| Status | Active |
What is the airline code for Scandinavian Airlines System?
The IATA airline code for Scandinavian Airlines System is SK, and its ICAO code is SAS. The two-character IATA code prefixes the carrier's flight numbers, for example SK123.
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 SK code comes from
SK stands for Scandinavian Airlines System, the three-country flag carrier of Denmark, Norway and Sweden founded in 1946, with the S and K drawn from SKandinavien. SAS was a founding member of Star Alliance in 1997, left for SkyTeam in 2024 after Air France-KLM invested, and splits its operation across Copenhagen, Stockholm and Oslo.
More on how these identifiers work in what an IATA code is and airline callsigns.
What are Scandinavian Airlines System's hub airports?
Scandinavian Airlines System (SK) concentrates its network on CPH (Copenhagen), ARN (Stockholm), OSL (Oslo).
Which airport does Scandinavian Airlines System serve most?
Scandinavian Airlines System (SK) appears on more routes at ARN, Stockholm, than at any other airport in the open route dataset.
The airports Scandinavian Airlines System appears at most often in that dataset, most routes first:
Routes flown by Scandinavian Airlines System
The busiest pairs Scandinavian Airlines System (SK) 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 Scandinavian Airlines System?
Scandinavian Airlines System uses the ICAO airline code SAS and the radio callsign "Scandinavian". Flight plans and air traffic control use SAS, while tickets and schedules use SK.
What is the radio callsign for Scandinavian Airlines System?
Air traffic control refers to Scandinavian Airlines System by the radio callsign "Scandinavian".
What country is Scandinavian Airlines System based in?
Scandinavian Airlines System (SK) is based in Sweden.
What is the abbreviation for Scandinavian Airlines System?
The two-character IATA abbreviation for Scandinavian Airlines System is SK, and its three-letter ICAO code is SAS.
How many routes does Scandinavian Airlines System fly?
The open route dataset lists 504 route entries for Scandinavian Airlines System, codeshare listings included, which ranks the carrier number 26 by that count. The route table below shows only the pairs Scandinavian Airlines System is listed as operating.
Is Scandinavian Airlines System in an airline alliance?
Scandinavian Airlines System (SK) is a member of SkyTeam, the global airline alliance founded in 2000. Membership means shared lounges, frequent flyer recognition and connecting networks across the member carriers.