St Clair County International Airport

St Clair County International Airport is an airport located in Port Huron Michigan, US. The airport's IATA code is PHN, which is the three-letter code used on boarding passes and flight bookings. The ICAO code is KPHN, used by air traffic control and pilots for flight planning.

The airport operates in the America/New_York timezone. When planning flights to or from PHN, use our flight duration calculator to account for timezone differences, especially for international travel.

St Clair County International Airport sits at an elevation of 650 feet (198 meters) above sea level.

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