St. Louis Lambert International Airport — St Louis, United States

Named for Albert Bond Lambert, a local businessman and balloonist who trained under the Wright brothers and became one of the earliest licensed pilots in the country, STL traces its roots to some of the earliest organized flying in the United States. The field became a defining hub for Trans World Airlines, which kept its operational heart in St. Louis for decades before merging into American Airlines in 2001, a transition that eventually scaled back the airport's hub status. St. Louis also holds a place in aviation lore through Charles Lindbergh, whose famous transatlantic aircraft was financed by a group of local businessmen and carried the city's name. Today the airport handles a mix of domestic legacy-carrier flights and a growing low-cost presence, serving the greater metropolitan area from its location northwest of downtown. Two terminals handle passenger traffic, connected by an above-ground shuttle system for transfers.