 Color Air started with flights from Gardermoen on 1 August , two months before the airport opened . Gardermoen was taken into use on 8 October by SAS and Braathens . Both immediately increased the number of flights . Braathens established a route to Haugesund , while SAS started routes to Ålesund and Kristiansand . The number of daily trips from Oslo for SAS increased from 59 to over 80 . In total , the three companies increased their daily round trip from 138 to 200 , and the daily seat capacity from 18 @,@ 000 to 26 @,@ 000 . Ålesund had the largest increase , from seven daily round trips with only Braathens , to seventeen offered by all three companies . 
