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IATA PHN ICAO KPHN Small airport

St Clair County International Airport

Port Huron · Michigan · United States

Location

Town
Port Huron
Region
Michigan
Country
United States
Elevation
650 ft
Latitude
42.9110
Longitude
-82.5289

Observed traffic

Departures (30 d)
321
Arrivals (30 d)
328
All observed flights
649
Last seen
October 30, 2026

Facility

Type
Small airport
Scheduled service
No
Longest runway
5,104 ft
Also known as
—

Runways

RunwayLengthWidth SurfaceLightedHeadings
04 / 22 5,104 ft 100 ft ASP Yes 036° / 216°
10 / 28 4,000 ft 75 ft ASP Yes 095° / 275°

Frequencies

TypeDescriptionMHz
A/D SELFRIDGE APP/DEP 119.600
AWOS AWOS 3 118.375
UNIC CTAF/UNICOM 123.050

Wikipedia Airport data from OurAirports (public domain).