St Clair County International (PHN)

Airport information: Port Huron, MI, United States. Search for another airport below.

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Location and general information

ICAO code: KPHN
FAA identifier: PHN
FAA site number: 10235.1*A
City / state: Port Huron, MI
County: St Clair
Time zone: America/Detroit
Reference point: 42°54'39.45" N
82°31'43.86" W
Elevation: 650.1 ft (surveyed)
Magnetic variation: 7° W (1985)
Status: Operational
Ownership: Public, Saint Clair County
Use: Open to the public
Airport area: 1,135 acres
From downtown: 5 NM southwest
Sectional chart: Detroit
Activated: 11/1951

Services and facilities

Control tower: No
Attendance: All months, all days, 0800-1700
Fuel: 100LL, Jet A+
Airframe / engine repair: Major / major
Transient storage: Hangar, tie-downs
ARTCC: Cleveland (ZOB)
Flight service: Lansing (LAN)
1-800-WX-BRIEF
NOTAM facility: PHN
Wind indicator: Lighted
Beacon: White and green, sunset to sunrise
Segmented circle: Yes
Landing fee: Yes
Customs: Airport of entry
Airport manager: Catherine Fiore
810-364-6890
Last FAA inspection: 05/08/2025

FAA remarks

Deer and large birds on and in the vicinity of airport.
Tsatlc flts must ntfy US cust at 810-985-9541 one hour prior to entry into the US. Ntfy US department of agriculture at 810-985-6126 and airport manager 24 hours prior for disposal of aircraft international trash.
For CD contact selfridge approach at 586-239-5706, when approach closed contact Cleveland ARTCC at 440-774-0224/0490.

Source: FAA Airport Data and Information Portal (ADIP), effective October 29, 2026. View this airport on the FAA site

Airport facts

ICAO code: KPHN
FAA identifier: PHN
Location: Port Huron, MI, United States
Elevation: 650.1 ft
Time zone: America/Detroit
Coordinates: 42.91096, -82.52885

Runways

Runway	Size	Surface
04 / 22	5,104 × 100 ft	Asphalt, good, grooved
10 / 28	4,000 × 75 ft	Asphalt, good

Codes, elevation and runways: FAA airport data (NASR), effective 2026-10-29. Reference only, not for navigation.

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