Airport
PHN St Clair County International Airport
St Clair County International Airport (PHN) is a small airport near Port Huron, United States with no regular commercial traffic. Below: its exact location and the nearest airport with flights.
IATAPHN
ICAOKPHN
TimezoneAmerica/New York
Elevation198 m
Airports nearby
Other options near Port Huron
Q&A
Answers to your questions
What is St Clair County International Airport's code?
The IATA code is PHN, the ICAO code is KPHN. It's a small field with no regular commercial traffic.
What's the nearest airport with scheduled flights?
Detroit Metropolitan Wayne County Airport (DTW), about 103 km away.
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Sources: Airport data: OpenFlights (ODbL) · Route network: OpenFlights routes · Getting-there notes: Around the World, checked 2026