| Big Sky Airport | |
| Icao: | KEKS |
| Faa: | EKS |
| Type: | Public |
| Owner: | Madison County |
| City-Served: | Ennis, Montana |
| Elevation-F: | 5,433 |
| Elevation-M: | 1,656 |
| Coordinates: | 45.2744°N -111.6489°W |
| R1-Number: | 16/34 |
| R1-Length-F: | 7,600 |
| R1-Length-M: | 2,316 |
| R1-Surface: | Asphalt |
| Stat-Year: | 2019 |
| Stat1-Header: | Aircraft operations (year ending 7/21/2019) |
| Stat1-Data: | 12,350 |
| Stat2-Header: | Based aircraft |
| Stat2-Data: | 19 |
| Footnotes: | Source: Federal Aviation Administration[1] |
Big Sky Airport (also known as Ennis Big Sky Airport) is a county-owned, public-use airport located six nautical miles (7 mi, 11 km) southeast of the central business district of Ennis, a town in Madison County, Montana, United States. It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a general aviation airport.[2]
Although many U.S. airports use the same three-letter location identifier for the FAA and IATA, this facility is assigned EKS by the FAA but has no designation from the IATA.[3]
Big Sky Airport has one runway designated 16/34 with an asphalt surface measuring 7,600 by 100 feet (2,316 x 30 m).
For the 12-month period ending July 21, 2019, the airport had 12,350 aircraft operations, an average of 34 per day: 93% general aviation, 6% air taxi, and <1% military. At that time there were 34 aircraft based at this airport: 30 single-engine, 2 multi-engine, and 2 helicopter.
Choice Aviation, the airport's fixed-base operator (FBO), offers fuel, flight instruction, aircraft/hangar rental, and other services.
On 19 February 2020, Big Sky Airport was awarded a $5.6 million FAA grant to extend the main taxiway to 7,600 ft (2,316 m), repave portions of the runway, and expand the airport property.[4]