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
Pittsburgh International Airport Pittsburgh International Airport Pittsburgh International Airport , formerly Greater Pittsburgh International Airport, is a civil–military international airport in the eastern United States, in the suburbs of Pittsburgh, Pennsylvania. It is located in Findlay and Moon townships of Allegheny County, about west of downtown Pittsburgh, at an approximate elevation of above sea level. It was built to replace Allegheny County Airport, which was closer to Pittsburgh but too small to handle the growing passenger traffic. The new airport construction began in 1946 and opened in 1952. Over the decades, passenger traffic increased for the airport, especially as US Airways developed it