Major American, Delta, United, and Alaska Airlines are among the major U.S. airlines that use SkyWest Airlines as a regional carrier. SkyWest Airlines DFW Terminal mostly uses Terminal E at Dallas/Fort Worth International Airport (DFW), which is a hub for American Airlines. With flights to smaller airports around the United States and abroad, SkyWest plays a crucial role at DFW by offering necessary regional connections, particularly for travelers on American Airlines.