St Marys, Pennsylvania
KOYM St Marys Muni
St Marys Muni (KOYM) is a non-towered, public-use airport in St Marys, Pennsylvania, at 1,934.3 ft MSL. Its runway is 10/28 (4,300 by 75 ft, asphalt). CTAF 122.7.
FAA NASR data effective Oct 29, 2026. Not for navigation; verify with current FAA charts and the Chart Supplement.
Airport
At a glance
- Identifiers
- ICAO KOYM, FAA OYM
- Location
- St Marys, Pennsylvania (Elk County). 3 NM SE of the city center
- Elevation
- 1,934.3 ft MSL
- Position
- 41.4125° N, 78.5026° W
- Control tower
- No, non-towered
- Sectional chart
- Detroit
- Magnetic variation
- 11° W (2005)
- Fuel
- 100LL, Jet A
- Ownership
- Publicly owned, open to the public
- Attendance
- MON-FRI 0800-1600
1 runway
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 10/28 | 4,300 × 75 ft | Asphalt, good condition | Medium intensity |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 10 | Left traffic | 4-light PAPI, left | None listed | None listed | Not listed |
| 28 | Left traffic | 4-light PAPI, left | LOC/DME | None listed | Not listed |
VHF
Frequencies
- CTAF
- 122.7
- Actvt Mals Rwy 28; Papi Rwys 10 & 28; Mirl Rwy 10/28 - Ctaf.
- UNICOM
- 122.7
Weather station
- AWOS-3P OYM
- 118.05
Before you go
Brief KOYM in Ascent EFB.
Current weather, NOTAMs and the airport diagram for St Marys Muni, 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.