The 25 Busiest Airports in the United States

Salt Lake City International Airport

JayLazarin/Getty Images

 

Location: Salt Lake City, Utah
Airport Code: SLC

 

A hub for Delta Airlines, Salt Lake City International Airport serves many connecting flights to western destinations, in particular, ski resorts. The popular Park City resort is only a 45-minute drive from SLC.

Midway International Airport

David Kinney/Flickr/CC BY 2.0

 

Location: Chicago, Illinois
Airport Code: MDW

 

Chicago's smaller airport is an alternative to the city's busy O'Hare International Airport. Southwest Airlines has the largest presence at MDW.