City of Colorado Springs Municipal Airport, known as Colorado Springs Airport, is a city-owned public civil-military airport 6 miles (9. 7 km) southeast of downtown Colorado Springs, in El Paso County, Colorado, United States. It is the second busiest commercial service airport in the state after Denver International Airport. Peterson Space Force Base, which is located on the north side of runway 13/31, is a tenant of the airport.City of Colorado Springs Municipal Airport, known as Colorado Springs Airport, is a city-owned public civil-military airport 6 miles (9. 7 km) southeast of downtown Colorado Springs, in El Paso County, Colorado, United States. It is the second busiest commercial service airport in the state after Denver International Airport. Peterson Space Force Base, which is located on the north side of runway 13/31, is a tenant of the airport.