Alaska Air Group is the parent company of Alaska Airlines and Horizon Air. Headquartered in Seattle, Alaska is the fifth largest airline in the U.S. With Horizon Air and its other regional partners, Alaska Airlines serves more than 120 destinations across the United States, Belize, Canada, Costa Rica and Mexico from its West Coast hubs. Together, we operate the fifth largest airline in the United States, offering unparalleled guest service, connectivity and schedules from our hub markets along the West Coast. With our regional partners, we fly to more than 120 destinations across the United States, Belize, Canada, Costa Rica and Mexico. Alaska is also a member of the oneworld® global alliance.