Aircraft Number Age Rank for the age by aircraft type Airbus A319 4 4.2 years On 115 airlines operating this type of aircraft SAS ranks 35 Airbus A321 8 9 years On 68 airlines operating this type of aircraft SAS ranks 38 Airbus A330 4 8.2 years On 89 airlines operating this type of aircraft SAS ranks 55 Airbus A340 6 9.4 years On 49 airlines operating this type of aircraft SAS ranks 16 Boeing 737 9 18.4 years On 290 airlines operating this type of aircraft SAS ranks 87 Boeing 737 Next Gen 118 10.7 years On 179 airlines operating this type of aircraft SAS ranks 147 Canadair Regional Jet 12 1.9 years On 82 airlines operating this type of aircraft SAS ranks 6 McDonnell Douglas MD-80/90 26 21.6 years On 82 airlines operating this type of aircraft SAS ranks 46 TOTAL 187 11.7 years The calculation of the fleet age can be approximated because it is only based on the supported aircraft