SkyWest Airlines is an American regional airline headquartered in St. George, Utah. SkyWest operates and maintains aircraft used on flights that are scheduled, marketed, and sold by four partner mainline airlines. The company is contracted by Alaska Airlines, American Airlines, Delta Air Lines, and United Airlines. In all, it is the largest regional airline in North America when measured by fleet size, number of passengers carried, and number of destinations served — and one of the largest airlines worldwide in terms of fleet size.
