Thompson Falls Airport
THM · KTHM · Thompson Falls, Montana · Sanders County · map
Thompson Falls Airport is a public-use airport owned by Sanders County, 3 miles southeast of Thompson Falls, Montana, 2,467 feet above sea level. Its one runway, 08/26, is 4,200 feet of asphalt. It has fuel (100LL avgas).
The airport
- Codes
- FAA THM · ICAO KTHM
- Kind
- Airport · open to the public · publicly owned
- Owner
- Sanders County
- Elevation
- 2,467 feet above sea level
- Control tower
- No control tower
- Attended
- unattended
- Lights
- runway lights see the remarks below; beacon sunset to sunrise
- Fuel
- 100LL avgas
- Repairs
- airframe: none; engine: none
- Parking
- tiedown
- On the chart
- Great Falls sectional
- Magnetic variation
- 19E
- In the FAA's files since
- December 1944
Runway
For understanding the field, not for navigation.
| Runway | Length × width | Surface | Lights |
|---|---|---|---|
| 08/26 | 4,200 × 75 ft | Asphalt, excellent | Medium-intensity lights |
- Runway 08: PAPI, two lights on the left
- Runway 26: PAPI, two lights on the left, trees 104 ft high 1,900 ft from the end
Radio frequencies
| Common traffic advisory (CTAF) | 122.9 |
Wind map live wind over the area, from Windy.com
Colours show wind speed, the moving lines its direction; drag the time bar for the coming days. Map and forecast by Windy.com.
Aircraft registered in Thompson Falls from the FAA register
17 aircraft are registered to owners in Thompson Falls, Montana: 15 piston singles, 2 weight-shift and powered parachutes. Not every one of them is based at this airport; the based-aircraft count above is the FAA's figure for this airport alone.
Individuals are counted, never named. All aircraft registered in Montana.
Accidents and incidents at or near this airport NTSB records · 5 since 1982, 0 fatal
Cases the NTSB recorded with this as the nearest airport, newest first. Each opens the full report in plain English.
Nearby within 30 nautical miles
The FAA's remarks as written in the airport file
- Constr prior 1959
- Automated UNICOM available on 118.325; 3 clicks.
- Marked pwr lines 7 MI east mainland to big is.
- Activate PAPI runway 8 and 26; medium-intensity runway lights runway 08/26 - the common traffic frequency.
- Fuel available 24/7 with credit card.
- 100 feet silo in transient surface northeast side of runway.
- Waterfowl in the vicinity of airport.
- 300 feet candlestick fxd dist mkrs in transient surface.
Facts from the FAA's airport file effective October 1, 2026, written out in plain English; weather from the National Weather Service's aviation weather service; registered aircraft from the FAA register as of October 5, 2026; accidents from the NTSB's public database. Owners are shown only when they are an organisation; no person is named. Check the official sources before a flight: this page is for understanding an airport, not for planning one.