Fort Sumner Municipal Airport (IATA: FSU, ICAO: KFSU, FAA LID: FSU) is a village owned, public use airport located two nautical miles (4 km) northeast of the central business district of Fort Sumner, a village in De Baca County, New Mexico, United States.

[2] The airfield's origins date to the 1920s when the Transcontinental Air Transport airline built an airfield in Fort Sumner as part of its coast-to-coast air passenger network, but the site was abandoned when the airline's ambitious plans collapsed in the Great Depression.

NASA spent about $100,000 to construct large insulated walls and air conditioning inside the one remaining wartime hangar so payloads could use the place in a controlled environment.

The NASA Ft. Sumner facility has grown in capability over the years and now includes a machine shop and still utilizes the old World War II hangar as a work area, storage area for support vehicles, and a hangar for NSBF aircraft during balloon flight operations.

Fort Sumner Municipal Airport covers an area of 960 acres (388 ha) at an elevation of 4,165 feet (1,269 m) above mean sea level.