 Since the 1960s , Alaska has consistently operated Boeing jet aircraft in its fleet although the first jetliner type operated by the airline was the Convair 880 . Alaska also operated the Convair 990 jetliner . Besides the current Boeing 737 models flown by Alaska , the airline previously operated the Boeing 707 and Boeing 720 as well as the Boeing 727 @-@ 100 , 727 @-@ 200 and 737 @-@ 200 . The last 727 was retired in May 1994 . 
