SAS – Skandinavian Airlines is the flag carrier of  Denmark, Sweden and Norway. It was founded in 1946 and is a member of the Star Alliance.  
The airline is based  at the airports of Kopenhagen, Arlanda in Stockholm and Gardermoen in Oslo.

SAS flies to 90 destinations in 28 countries. 

If you want to book tickets for SAS, you can do that on the Viva.gr.