JFK is one as is Chicago O'Hare but Dallas Fort Worth is the main one and Miami is also a big one for South America.
LA International Airport is a hub for American Airlines and also for a number of other smaller airlines. It is a popular airport with tourists visiting the area.
Dallas-Fort Worth because Love Field is a regional airport.
Hong Kong International Airport has been operating since 1998 and is the hub for major destinations in China. Cathay Pacific, Hong Kong Airlines and Dragonair are just a few of the airlines calling this airport their home.
Continental Airlines
Spirit Airlines is an American airline based in Fort Lauderdale and Detroit. The airports care called Fort Lauderdale - Hollywood International Airport and Detroit Metropolitan Wayne County Airport. Its headquarters is in Miramar, Florida.
The Alliance Airport in Fort Worth serves many airlines, however, it is a main hub for FedEx aircraft. The airport is a completely industrial airport.
American Airlines.
George Bush Intercontinental Airport(IAH)- Houston
The city of Bogota, Columbia in South America is a hub for a few major airlines that have country wide and international flights to the major airport there. These airlines include LAN, British Airways, Avianca, and American.
Charlotte Douglas International Airport is the largest airport in North Carolina based on passenger traffic and number of flights. It serves as a major hub for American Airlines.
CLT is the Charlotte/Douglas International Airport.
Hobby is mostly for domestic flight and bush is international and domestic Bush Hub is United Airlines and hobby airport is Southwest Airlines