American Airlines is a major U.S. network carrier providing scheduled air transportation for passengers and cargo across domestic and international markets through hubs in Charlotte, Chicago, Dallas/Fort Worth, Los Angeles, Miami, New York, Philadelphia, Phoenix, and Washington, D.C. The company generates revenue primarily from ticket sales across multiple cabin classes, ancillary services such as baggage and seat fees, and its AAdvantage frequent flyer loyalty program, while operating aircraft through both mainline operations and regional third-party capacity purchase agreements. American serves leisure, business, and cargo customers through direct channels and third-party distribution systems, though it faces substantial operational challenges including volatile fuel costs, unionized labor pressures, regulatory constraints, airport capacity limitations, and exposure to macroeconomic conditions and travel demand volatility.