Hot Springs Airport (FAA LID: S09) is a county-owned public-use airport in Sanders County, Montana, United States. It is located two nautical miles (4 km) east of the central business district of Hot Springs, Montana, a town on the Flathead Indian Reservation.

Hot Springs Airport covers an area of 117 acres (47 ha) at an elevation of 2,763 feet (842 m) above mean sea level. It has one runway designated 6/24 with an asphalt measuring 3,550 by 45 feet (1,082 x 14 m). For the 12-month period ending July 22, 2008, the airport had 500 general aviation aircraft operations, an average of 41 per month.

• List of airports in Montana

• Aerial image as of 18 July 1995 from USGS The National Map
• Resources for this airport:
  • FAA airport information for S09
  • AirNav airport information for S09
  • FlightAware airport information and live flight tracker
  • SkyVector aeronautical chart for S09