The Key West International Airport, a public airport located in and owned by Monroe County, Florida, serves six commercial airlines that fly to and from Key West. It also has a charter service, SeaCoast Airlines that has frequent flights to and from St. Petersburg-Clearwater International Airport, its headquarters in Florida.
Among the major airlines, Delta, US Airways and American Eagle Airlines schedule frequent service at the Key West airport, although the airport does not serve as a hub to any of the airlines. Silver Airways, which operates as United Express for United Airlines, uses this airport and routes most flights through Ft. Lauderdale, where the airline is based. Silver Airways also offers flights to and from Tampa and Fort Myers, Florida
By far the busiest domestic destination from Key West International Airport is Atlanta, Georgia. Delta Airlines, which added Key West to its route in 2009, carried roughly 117,000 passengers between April, 2011, and March, 2012, on direct flights to Atlanta.
Miami follows second, with an estimated 104,000 passengers flying on American Airlines during that same time. Many of the American Airlines flights here are operated by American Eagle Airlines, the world’s largest regional airline system.
The third busiest destination, Tampa, Florida is accessible via United Express and was once served by AirTran, a former subsidiary of Southwest Airlines, which was added in 2009 and which provided travelers more affordable flights. Passenger traffic to Tampa during the given time period was approximately 38,000.
Southwest has since acquired and merged with AirTran. As of early November, 2012, all AirTran flights out of Key West have switched over to Southwest. Southwest offers service to Tampa, Orlando, and New Orleans.
Cape Air, a smaller airline but the largest independent regional airline in the United States, is in regular operation here and frequently carries passengers to and from Fort Myers, Florida, which destination is also served by United Express.
US Airways serves Key West through Republic Airlines, which does business as US Airways Express and offers service to Charlotte, North Carolina, the US Airways hub, and on to Washington-National Airport, officially the Ronald Reagan Washington National Airport.
All of the six commercial airlines fly out of Key West’s main terminal. Any international flights from Key West are routed through Miami International Airport and must connect to one of the airlines there.