Kalispell City Airport (FAA LID: S27) is a city-owned public-use airport located one nautical mile (1.85 km) south of the central business district of Kalispell, a city in Flathead County, Montana, United States.

[2] Kalispell City Airport covers an area of 134 acres (54 ha) at an elevation of 2,932 feet (894 m) above mean sea level.

It has one runway designated 13/31 with an asphalt surface measuring 3,600 by 60 feet (1,097 x 18 m).

[1] For the 12-month period ending August 25, 2005, the airport had 41,400 aircraft operations, an average of 113 per day: 80% general aviation, 16% air taxi, and 5% military.

At that time there were 68 aircraft based at this airport: 82% single-engine, 6% multi-engine, 10% helicopter and 2% ultralight.