Airport Code: CLT
This airport serves cities in the upper Southeast, including popular destinations in the Carolinas, and is often a common transfer airport alternative to Atlanta's Hartsfield International Airport. CLT is a hub for U.S. Airways and United.
Airport Code: MIA
Miami International Airport is the main U.S. gateway to Latin America and the Caribbean. American Airlines. MIA has the largest number of international passenger traffic after New York City's JFK International Airport. Alternate airports to MIA are West Palm Beach Airport and Fort Lauderdale/Hollywood International Airport (near the bottom of this list).
Airport Code: MCO
Visitors to Walt Disney World and surrounding theme parks make Orlando International Airport one of the busiest airports in the USA. Many regional and low-cost airlines serve MCO, including Southwest and JetBlue.
Airport Code: EWR
Among frequent travelers, Newark Liberty is one of the most reviled airports in the nation. Still, it is an alternate airport to JFK and LaGuardia and is closer to Manhattan than those two other airports.
Airport Code: SEA
Airport Code: MSP
Delta Airlines has a major hub at Minneapolis/St. Paul Airport. In addition to the twin cities of Minneapolis and St. Paul, Minnesota, MSP handles passengers going to and from destinations in the Upper Midwest, including Wisconsin, Michigan, and North and South Dakota.
Airport Code: DTW
Although the name makes it sound like a regional airport, DTW is an international airport and is Delta Airlines' second largest hub.
Airport Code: PHL
U.S. Airways has one of its largest hubs at this East Coast airport. PHL serves Philadelphia, but is also an ideal airport for reaching points in Pennsylvania, south New Jersey, and the Delaware Valley.
Airport Code: BOS
Logan International Airport is the main airport for New England destinations, such as Boston; Providence Rhode Island; Portland, Maine; Vermont; and New Hampshire. Airlines Delta, JetBlue, and U.S. Airways all have large hubs here.
Airport Code: LGA
LaGuardia Airport is known as New York City's domestic airport, and it handles the bulk of airline commuter shuttles to and from New York.