PHN

Small airport · Port Huron, United States

St Clair County International Airport

St Clair County International Airport is a small airport serving Port Huron, United States. Its IATA code is PHN. Its ICAO code is KPHN. It has 2 runways, longest 5,104 ft (ASP). Elevation 650 ft.

IATA PHNICAO KPHN2 runways, longest 5,104 ft (ASP)United StatesSmall airport

No freely licensed photograph of this airport is in our library yet — rather than borrow a picture of somewhere else, this profile leads with its verified facts.

Airport facts

Location	Port Huron, United States
IATA code	PHN
ICAO code	KPHN
Type	Small airport
Runways	2 runways, longest 5,104 ft (ASP)
Elevation	650 ft
Coordinates	42.9110° N, 82.5289° W

Every fact above is taken from the sources listed below; anything no source states is left blank rather than guessed.

National parks near this airport

National parks close to St Clair County International Airport, by straight-line distance — each link opens its profile on our sister site National Park Profiles.

Lakeport State Park · United States · 14.8 miles away
Algonac State Park · United States · 18.4 miles away
W.C. Wetzel State Recreation Area · United States · 20.3 miles away
Bald Mountain State Recreation Area · United States · 35.8 miles away
Ipperwash Provincial Park · Canada · 35.8 miles away
Metamora-Hadley State Recreation Area · United States · 40.9 miles away

Airports nearby

The closest airports in this library, by straight-line distance.

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Coleman A. Young Municipal Airport

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XCMChatham Kent AirportSmall airport · Canada

Chatham Kent Airport

Canada · XCM

47.6 miles away

PTKOakland County International AirportMedium airport · United States

Oakland County International Airport

United States · PTK

48.3 miles away

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Frequently asked questions

What is the airport code for St Clair County International Airport?

St Clair County International Airport — its IATA code is PHN and its ICAO code is KPHN.

Where is St Clair County International Airport located?

St Clair County International Airport serves Port Huron, United States. Its coordinates are 42.9110° N, 82.5289° W.

How high is St Clair County International Airport?

St Clair County International Airport sits at 650 feet above sea level.

Sources

Page last updated 13 November 2026.