Horizon Air is an American regional airline headquartered in SeaTac, Washington, within the Seattle metropolitan area. It is a wholly-owned subsidiary of the Alaska Air Group and it is paid by fellow group member Alaska Airlines to staff, operate, and maintain aircraft used on flights that are scheduled, marketed, and sold by Alaska Airlines. Planes operated by Horizon are co-branded as Alaska HORIZON to differentiate Horizon's planes from those operated by Alaska's other regional airline partner, SkyWest Airlines.
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