Des Moines International Airport is a joint civilian-military commercial service airport 5 miles southwest of Des Moines, the capital of Iowa. The airport's 2,600 acre campus includes two runways, 46 buildings, 7 parking facilities, and the terminal. Six commercial airlines offer service from DSM. The airport is managed by the Des Moines Airport Authority. The National Plan of Integrated Airport Systems for 2017–2021 called it a primary commercial service airport.