Fort Benton, Montana
79S Fort Benton
Fort Benton (79S) is a non-towered, public-use airport in Fort Benton, Montana, at 2,868.8 ft MSL. It has 2 runways: 05/23 (4,300 by 75 ft, asphalt), 14/32 (1,700 by 75 ft, dirt). CTAF 122.8.
FAA NASR data effective Oct 29, 2026. Not for navigation; verify with current FAA charts and the Chart Supplement.
Airport
At a glance
- Identifiers
- FAA 79S
- Location
- Fort Benton, Montana (Chouteau County). 1 NM NE of the city center
- Elevation
- 2,868.8 ft MSL
- Position
- 47.8442° N, 110.6369° W
- Control tower
- No, non-towered
- Sectional chart
- Great Falls
- Magnetic variation
- 14° E (2005)
- Fuel
- 100LL
- Ownership
- Publicly owned, open to the public
- Attendance
- Unattended
2 runways
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 05/23 | 4,300 × 75 ft | Asphalt, excellent condition | Medium intensity |
| 14/32 | 1,700 × 75 ft | Dirt, poor condition | Not listed |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 05 | Not stated | 2-light PAPI, left | None listed | None listed | Not listed |
| 23 | Not stated | 2-light PAPI, left | None listed | None listed | Not listed |
| 14 | Not stated | None listed | None listed | None listed | Not listed |
| 32 | Not stated | None listed | None listed | None listed | Not listed |
VHF
Frequencies
- CTAF
- 122.8
- Actvt Papi Rwy 05 & 23; Mirl Rwy 05/23 - Ctaf.
- UNICOM
- 122.8
Weather station
- AWOS-3PT 79S
- 121.125
Before you go
Brief 79S in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Fort Benton, in the app on iPhone and iPad.
Not for navigation. Verify with current FAA charts and the Chart Supplement before flight.
Source: FAA NASR 28-day subscription, cycle effective Oct 29, 2026. Airport data changes every 28 days and NOTAMs can override it at any time.