 During 1999 , domestic air ticket prices increased 9 @.@ 2 % , and another 17 % the following year . By 2001 , the domestic capacity was below the level before Gardermoen opened . Braathens and SAS started cooperating to set the full @-@ price tickets on routes to eleven cities . This meant that the prices were identical on all the routes where both airlines flew , although they were not allowed to make such cooperation with discounted tickets . During the crisis , Braathens had sold several aircraft and started leasing them back to gain liquidity . The company announced in 2000 that they were considering purchasing a smaller type of aircraft , that would replace the 737s on some routes , and that would allow Braathens to start operating the Norwegian Air Shuttle services themselves . 
