St Clair County International Airport KPHN
St Clair County International Airport (KPHN, PHN) is a non-towered airport in Port Huron, Michigan, 650 feet above sea level. There are 2 runways; the longest is 04/22, 5,104 feet of asphalt, lighted. Approach and departure service comes from Selfridge Angb. The closest other airport on TowerScope is Marine City Airport (K76G), 12 nautical miles south.
Runways
| Runway | Length | Surface | Lighted |
|---|---|---|---|
| 04/22 | 5,104 ft | asphalt | Yes |
| 10/28 | 4,000 ft | asphalt | Yes |
Frequencies
Selfridge Angb tower and approach
- 119.6 Approach and departure
- 391.9 Approach and departure
St Clair County International Airport weather station
- 118.375 PHN AWOS-3P
St Clair County International no tower
- 123.05 CTAF, UNICOM
From the FAA NASR 28-day data, cycle 2026-10-01. Check the Chart Supplement before use.
Location
42.9110, -82.5289. Field elevation 650 ft. No control tower on file.
Nearby airports
- K76G Marine City Airport 12 NM south
- KMTC Selfridge Air National Guard Base Airport 22 NM southwest
- K77G Marlette Township Airport 34 NM northwest
- KY83 Sandusky City Airport 36 NM northwest
- KVLL Oakland Troy Airport 36 NM southwest
- KDET Coleman A. Young Municipal Airport 37 NM southwest
- KPTK Oakland County International Airport 42 NM west
- KCFS Tuscola Area Airport 52 NM northwest