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
Williston Basin International Airport Williston Basin International Airport Williston Basin International Airport is an airport under construction near Williston, a city in the U.S. state of North Dakota. It is located roughly northwest of the city. Williston Basin Airport will have two runways and a terminal building. It is being built to replace Sloulin Field International Airport, which currently serves Williston and has experienced difficulty dealing with the increase in air traffic to Williston amid the North Dakota oil boom. The project is expected to be completed by late 2019. The airport currently serving Williston, North Dakota, is Sloulin Field International Airport. Sloulin Field