Scandinavian Airlines, often shortened to SAS (previously Scandinavian Airlines System and legally Scandinavian Airlines System Denmark-Norway-Sweden) is the flag carrier of Sweden, Norway and Denmark, and the largest airline in Scandinavia.

Part of the SAS Group and headquartered at the SAS Frösundavik Office Building in Solna, Sweden, the airline operates 182 aircraft to 90 destinations. The airline's main hub is at Copenhagen-Kastrup Airport, with connections to over 50 cities in Europe. (with more than 30 European connections) and Oslo Airport, Gardermoen are the other major hubs. Minor hubs also exist at Bergen Airport, Flesland, Göteborg Landvetter Airport, Stavanger Airport, Sola and Trondheim Airport, Værnes. While SAS Cargo is an independent and wholly owned subsidiary to Scandinavian Airlines, SAS Cargo has its main office at Copenhagen Airport.

In 2012, SAS carried 25.9 million passengers, achieving revenues of SEK 36 billion. This makes it the eighth-largest airline in Europe. The SAS fleet consists of Airbus A319, A320, A321, A330 and A340, Boeing 737 Next Generation, and Bombardier CRJ900 aircraft. In addition, SAS also wetleases ATR 72, Saab 2000 and Bombardier CRJ900 aircraft.

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