SkyWest, Inc. is the holding company for three scheduled passenger airline operations and an aircraft leasing company and is headquartered in St. George, Utah. SkyWest, Inc.'s scheduled passenger airline operations include SkyWest Airlines, also based in St. George, Utah and ExpressJet Airlines based in Atlanta, Georgia. SkyWest Airlines operates as United Express, Delta Connection and US Airways Express under contractual agreements with United Airlines, Delta Air Lines and US Airways, respectively. Also, SkyWest Airlines operates flights for Alaska Airlines under a contractual agreement. ExpressJet operates as United Express, Continental Connection and Delta Connection under contractual agreements with United/Continental and Delta Air Lines, respectively. ExpressJet Airlines was created with the merging of Atlantic Southeast and ExpressJet Airlines in 2011. System-wide, SkyWest, Inc. carriers serve markets in the United States, Canada, Mexico and the Caribbean with approximately 4,000 daily departures and a fleet of approximately 726 regional aircraft.