Service to Tampa begins on June 12th with one non-stop flight a day in each direction. Starting June 20th you can fly to New Orleans or back once a day non-stop. Alaska Airlines Miles Members who register online will receive 2 x miles for travel through August 15, 2014.
Detroit bound passengers can catch non-stop flights from and to Seattle on Alaska Airlines starting September 4, 2014 and will earn double elite-qualifying miles through October 31, 2014.
Alaska also announced new seasonal non-stop service between Portland and Kalispell from June 9 through August 23, 2014.
See details of new service here.