Des Moines International Airport (IATA: DSM, ICAO: KDSM, FAA LID: DSM) is a joint civilian-military commercial service airport 5 miles (8 km) 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 (American, Allegiant, Delta, Frontier, Southwest and United). 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. In 2016 a record 2.48 million passengers used the airport, up 5 percent from 2015. In 2019, DSM served 2.92 million passengers, a record for the airport.

The airport hosts the 132nd Wing of the Iowa Air National Guard.