American Airlines

American Airlines, founded in 1930 and headquartered in Fort Worth, Texas, is the world's largest airline by fleet size and revenue passenger-kilometers. As a founding member of the oneworld alliance, American operates a vast domestic and international network from its primary hubs at Dallas/Fort Worth International Airport, Charlotte Douglas International Airport, Chicago O'Hare, Miami International Airport, Philadelphia International Airport, and Phoenix Sky Harbor. The airline's fleet consists of over 900 mainline aircraft, primarily Boeing 737s, Boeing 787 Dreamliners, and Airbus A321s, supplemented by a large regional fleet operated under the American Eagle brand. American Airlines offers multiple cabin classes including Flagship First on select transcontinental and international routes, Flagship Business featuring lie-flat seats with direct aisle access, Premium Economy, and Main Cabin. The airline's Flagship Lounge and Admirals Club locations provide premium ground services at major hubs. The AAdvantage frequent flyer program, one of the oldest and largest loyalty programs in the aviation industry, offers four elite status tiers and extensive earning and redemption options across oneworld partners. American Airlines played a central role in US aviation history, having introduced the first revenue flights on the Douglas DC-3 and pioneering the computerized reservation system with SABRE. The airline completed its merger with US Airways in 2013, creating the world's largest carrier at the time.