American Airlines, Inc. (
AA) is a major
American airline headquartered in
Fort Worth, Texas. Operating an extensive international and domestic network, American Airlines is the
world's largest airline by fleet size and revenue, and the second largest by number of destinations served, after
United Airlines. It operates from its main hub at
Dallas/Fort Worth, and its hubs at
Charlotte,
Los Angeles,
New York-JFK,
New York-LaGuardia,
Miami,
Chicago-O'Hare,
Philadelphia,
Phoenix, and
Washington, D.C., while its primary maintenance base is at
Tulsa International Airport. Its primary competitors are
United Airlines,
Delta Air Lines, and
Southwest Airlines.