American Airlines is one of the largest carriers in the United States, operating an extensive mainline fleet of around 1,000 commercial jets. Like other major US airlines, it employs a hub and spoke model. It enjoys a majority market share in three significant US airports: Dallas/Fort Worth, Charlotte, and Miami. The airline also holds a notable position in Phoenix, Arizona.
According to the Bureau of Transportation Statistics, American Airlines dominates the market at Charlotte Douglas International Airport (CLT) with a 68% share, at Dallas/Fort Worth (DFW) with 66.7%, and at Miami International Airport (MIA) with 59%.
Dallas/Fort Worth International Airport is American Airlines' largest hub, located near the airline's headquarters. It is the second-busiest airport in the United States when measured by seat numbers, coming after Delta's hub at Hartsfield–Jackson Atlanta International Airport. "DFW Airport customers can choose among 193 domestic and 67 international nonstop destinations worldwide," states the Dallas-Fort Worth International Airport.