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Map: OpenStreetMap contributors, captured 21 Oct 2026. North is up and the drawing is simplified. Each runway is labelled at its ends.
Location
Port Huron, United States
ICAO code
KPHN
IATA code
PHN
Elevation
650 ft
Longest runway
5,104 ft (04/22)
Runways
2
Size class
Small
Position
42.9110, -82.5289
About KPHN
St Clair County International Airport (PHN) is a small airport in Port Huron, United States, with the ICAO code KPHN. Its two runways are 04/22 and 10/28. The longer one, 04/22, is 5,104 ft. All of them have hard surfaces. The OpenStreetMap layout shows 20 taxiway segments and 12 aprons. The route snapshot of 14 Oct 2026 has no scheduled routes for KPHN.
Runways
Runways, longest first
Runway
Length
Width
Surface
Lights
04 / 22
5,104 ft
100 ft
Hard
Lit
10 / 28
4,000 ft
75 ft
Hard
Lit
Runway idents and sizes from OurAirports. The runway headings in the source do not always match the idents, so only the idents are shown.
Scheduled routes
The route snapshot of 14 Oct 2026 has no scheduled routes for this airport.
Nearby airports with maps
The closest airports that have a map and a page here.
Sources: airport and runway data from OurAirports (public domain). Map data from OpenStreetMap contributors (ODbL). Routes from Virtual Radar Server standing data (CC0), snapshot of 14 Oct 2026.
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