Stapleton International Airport Stapleton International Airport Stapleton International Airport was the primary airport serving Denver, Colorado, United States from 1929 to 1995. At different times it served as a hub for Continental Airlines, the original Frontier Airlines, People Express, Trans World Airlines (TWA), United Airlines and Western Airlines. Other airlines with smaller hub operations at Stapleton included Aspen Airways, the current version of Frontier Airlines and Rocky Mountain Airways, with all three of these air carriers being based in Denver at the time. In 1995, Stapleton was replaced by Denver International Airport. It has since been decommissioned and the property redeveloped as a
Newark Liberty International Airport Newark Liberty International Airport Newark Liberty International Airport , originally Newark Metropolitan Airport and later Newark International Airport, is the primary airport serving the U.S. state of New Jersey, and the secondary international airport serving New York City. The airport straddles the boundary between the cities of Newark and Elizabeth, the former of which is the most populous city in the state. The airport is owned jointly by the cities of Elizabeth and Newark and leased to and operated by the Port Authority of New York and New Jersey. Newark Airport is located northeast of Philadelphia, west of New York