Mesa Airlines is a regional airline based in the United States, primarily operating as a feeder service for major carriers like American Airlines and United Airlines. Founded in 1980, it provides essential air travel services to smaller communities, connecting them to larger hubs. The airline operates a fleet of regional jets and turboprop aircraft, focusing on short-haul flights. With its headquarters in Phoenix, Arizona, Mesa Airlines plays a crucial role in the aviation industry by enhancing accessibility to air travel for passengers in underserved areas.