Buckley Space Force Base — Aurora, United States

Buckley Space Force Base carries the code BFK and operates as a United States Space Force installation rather than a civilian airport, offering no commercial ticketing or passenger terminal. The base sits in Aurora, Colorado, part of the greater Denver metropolitan area, at a high elevation of 5,662 feet consistent with the region's mile-high setting. A single runway supports the base's flight operations. Aurora itself spans three counties east of Denver and has grown into one of Colorado's larger cities, with Buckley remaining a major employer and defense presence within its boundaries. Because the installation supports space operations and missile warning systems rather than public air travel, BFK appears in global airport code listings without the scheduled airline routes typically found at a facility of comparable size.