St. Clair County International
PHN · KPHN · Port Huron, Michigan · St Clair County · map
St. Clair County International is a public-use airport owned by Saint Clair County, 5 miles southwest of Port Huron, Michigan, 650 feet above sea level. It has 2 runways; the longest, 04/22, is 5,104 feet of asphalt. It has fuel (100LL avgas, Jet A with additive) and about 58 general-aviation aircraft based on the field by the FAA's count. The FAA counts about 27,500 takeoffs and landings a year. About 6 passengers boarded flights here in the FAA's fiscal year 2024.
Quick answers answers refresh every morning
What is the airport code for St. Clair County International?
Its FAA code is PHN, and its ICAO code is KPHN.
Where is St. Clair County International?
It is 5 miles southwest of Port Huron, Michigan, 650 feet above sea level.
How long is the longest runway at St. Clair County International?
The longest of its 2 runways, 04/22, is 5,104 feet long.
Does St. Clair County International have a control tower?
No, it has no control tower.
What fuel can you buy at St. Clair County International?
The FAA's airport file lists 100LL avgas, Jet A with additive.
Where can you fly nonstop from St. Clair County International?
Airline flights go to 2 airports, the busiest of them Pellston Rgnl/Emmet County, Toronto. Every route
Are there flight schools at St. Clair County International?
2 flight schools, flying clubs or college flight programmes are based within about 15 miles of it: St Clair Flyers and Saint Clair Flight Academy INC. Compare them
Where are the nearest FAA examiners to St. Clair County International?
2 pilot examiners and 13 aviation medical examiners work within 50 nautical miles. See them by name
Weather and planning now, the forecast, warnings, pilot reports, winds aloft, restrictions
Fetching the weather now, the forecast, the warnings in force, pilot reports and the winds aloft for St. Clair County International…
Wind map live wind over the area, from Windy.com
Colours show wind speed, the moving lines its direction; drag the time bar for the coming days. Map and forecast by Windy.com.
The airport facts, runways, radio, fuel and services, the FAA's remarks
The airport
- Codes
- FAA PHN · ICAO KPHN
- Kind
- Airport · open to the public · publicly owned
- Owner
- Saint Clair County
- Elevation
- 650 feet above sea level
- Control tower
- No control tower
- Attended
- every day, 8:00 am to 5:00 pm
- Lights
- runway lights see the remarks below; beacon sunset to sunrise
- Fuel and services
- 100LL avgas, Jet A with additive; the services card below
- Notes
- landing fee · customs available
- On the chart
- Detroit sectional
- Magnetic variation
- 7W
- In the FAA's files since
- November 1951
Runways 2
For understanding the field, not for navigation.
| Runway | Length × width | Surface | Lights |
|---|---|---|---|
| 04/22 | 5,104 × 100 ft | Asphalt, good | High-intensity lights |
| 10/28 | 4,000 × 75 ft | Asphalt, good | Medium-intensity lights |
- Runway 04: ILS, PAPI, four lights on the left, medium-intensity approach lights with runway alignment lights (MALSR), tree 49 ft high 592 ft from the end
- Runway 22: PAPI, four lights on the left, tree 76 ft high 1,870 ft from the end
- Runway 10: PAPI, four lights on the left, tree 71 ft high 1,386 ft from the end
- Runway 28: PAPI, four lights on the left, tree 57 ft high 1,173 ft from the end
Radio frequencies
| Common traffic advisory (CTAF) · UNICOM | 123.05 | |
| Approach and departure | 119.6 | |
| Phn and aWOS-3P | 118.375 | |
| Algonac and center (remote transmitter) High | 126.525 |
Automated weather (AWOS-3P), by phone 810-364-7787.
Fuel and services as reported to the FAA
- Fuel
- 100LL avgas, Jet A with additive
- Repairs
- airframe and engine: major repairs
- Parking
- hangars, tie-downs
- Notes
- customs available · landing fee charged
Other fields with jet fuel nearby: Romeo State Airport (21 nm west), Dupont/Lapeer Airport (34 nm west), Oakland/Troy Airport (36 nm southwest).
The FAA's file records what is sold and done at the field, as the airport manager reports it, not who sells it or the price; fuel sellers (FBOs) are not named in any public file. Airports selling jet fuel in Michigan · avgas.
The FAA's remarks as written in the airport file, spelled out
- Deer and large birds on and in the vicinity of airport.
- Activate approach lights (MALSR) runway 04; runway end identifier lights runway 22, 10, and 28; PAPI runway 10 and 28; high-intensity runway lights runway 04/22; medium-intensity runway lights runway 10/28 - the common traffic frequency. PAPI runway 04 and 22 operates continuously.
- Commercial and corporate landing fee waived with fuel purchase.
- Unatndd major holidays.
Flights and activity in the air now, the airlines, based aircraft, takeoffs and landings
Activity now checking the volunteer receiver network…
Within ten miles
- Looking…
Arrivals and departures, last hour
- Looking…
From the volunteer receiver network, a few minutes behind at most; aircraft whose owners asked the FAA not to be displayed are left out; no person is named. Open the live map here.
Scheduled and charter flights from here the DOT's airline reports · August 2025 to July 2026
Airlines reported 2 departures from PHN in those twelve months, carrying 4 passengers in 6 seats (67% filled), to 2 destinations (1 abroad) on 1 airline.
| Where to | Flights | Passengers | Airlines |
|---|---|---|---|
| St. Clair County International → Pellston Rgnl/Emmet County PHN–PLN | 1 | 4 | Chartright Air Inc. |
| St. Clair County International → Toronto PHN–YYZ | 1 | 0 | Chartright Air Inc. |
All 2 destinations, the airlines and the aircraft, month by month
From the Bureau of Transportation Statistics' T-100 table: every segment an airline reported flying, three months in arrears. Private, business and training flights are not in it; the live picture is in the activity card.
Based aircraft as counted for the FAA, fiscal year 2024
Based aircraft, as a table
| aircraft | |
|---|---|
| single-engine | 52 |
| multi-engine | 3 |
| jets | 3 |
The FAA's count is the general-aviation aircraft kept on the field (singles, twins, business jets, helicopters) from its Terminal Area Forecast, the latest year with an actual count; airline fleets are never counted as based anywhere, so a big airline airport shows a small number. The register section below shows how many aircraft are registered to owners in town, a different measure again.
Takeoffs and landings a year about 27,500, the FAA's fiscal year 2024 (October 2023 to September 2024)
Takeoffs and landings, as a table
| a year | |
|---|---|
| general aviation, travelling | 20,000 |
| general aviation, local | 7,000 |
| military | 500 |
Local flights stay in the traffic pattern or nearby, often practice; travelling flights arrive from or leave for somewhere else. Counts at airports without a tower are the FAA's estimates. How this compares nationally: Airports by the numbers.
Who flies and works here aircraft registered in town, the companies, the examiners nearby
Aircraft registered in Port Huron from the FAA register
8 aircraft are registered to owners in Port Huron, Michigan: 8 piston singles. Not every one of them is based at this airport; the based-aircraft count above is the FAA's figure for this airport alone.
Individuals are counted, not named (the site's policy at this time). All aircraft registered in Michigan.
Who works here from the FAA's certificate lists and the register
Flight schools, flying clubs and college flight programmes based within about 15 miles:
- St Clair Flyers 1 aircraft · Saint Clair, 6 miles away
- Saint Clair Flight Academy INC 1 aircraft · Richmond, 10 miles away
Companies in the same town as this airport, and schools within about 15 miles of it (each placed at the main public airport of its town, or at the town's centre); not every one of them works from this field. All operators · all repair stations · all flight schools · all FBOs.
Examiners and inspectors nearby designated by the FAA · within 50 nautical miles
2 pilot examiners (the FAA's designated pilot examiners, who give the practical tests for pilot certificates) are based within 50 nautical miles: 2 for private pilot, 2 for commercial and instrument, 1 for airline transport pilot, 2 for flight instructor, 1 for sport pilot; 2 for airplanes, 1 for multi-engine airplanes. Also nearby: 13 aviation medical examiners, 2 engineering representatives.
- Daniel Stephen Unger private pilot, commercial and instrument, flight instructor, instrument instructor, instructor renewals, military competency, ground instructor, foreign pilot certificates; airplanes · Saint Clair County Airport · Smiths Creek, MI (3 nm) · (586) 675-6030 · [email protected]
- Gerald Leigh Stanley private pilot, commercial and instrument, airline transport pilot, flight instructor, instrument instructor, sport pilot, instructor renewals, military competency, ground instructor, foreign pilot certificates; airplanes, multi-engine airplanes · Oakland - Troy Airport · Troy, MI (36 nm) · (248) 613-9713 · [email protected]
All 17 nearby, by kind, with contact details
What each kind does
- DPE: Designated Pilot Examiner: gives the practical tests (checkrides) for pilot certificates and ratings.
- AME: Aviation Medical Examiner: a doctor who issues the medical certificates pilots must hold.
- DER-T: Designated Engineering Representative: approves engineering data for repairs and alterations on the FAA's behalf.
Designees are listed with the name and contact details the FAA publishes for them on its designee locator (read October 10, 2026): the FAA lists them so that pilots, mechanics and companies can find them. Private individuals are not named, the site's policy at this time. A designee who would rather not appear here can ask us through the contact address on the About page. Each designee is placed at the main public airport of the town the FAA lists (or the nearest one to its zip code), so "nearby" means the town, not an exact address. All examiners by state.
Safety record the NTSB's cases at or near this airport
Accidents and incidents at or near this airport NTSB records · 17 since 1982, 3 fatal
Cases the NTSB recorded with this as the nearest airport, newest first. Each opens the full report in plain English. The country as a whole: Where accidents happen.
Nearby within 30 nautical miles
Connections how this airport links to the rest of the register
- Aircraft registered in Port Huron 8 aircraft · 8 piston singles
- St Clair Flyers 1 aircraft · flight school
- Saint Clair Flight Academy INC 1 aircraft · flight school
- Pellston Rgnl/Emmet County (PLN) 1 flights in twelve months · Chartright Air Inc.
- Toronto (YYZ) 1 flights in twelve months · Chartright Air Inc.
- NTSB accidents and incidents at or near this airport 17 since 1982 · 3 fatal
- Accidents and incidents in Michigan 2,103 since 1982 · 226 in the last ten years
- Nearby landing places within 30 nautical miles 8 airports, heliports and seaplane bases
- Public-use airports in Michigan 221 landing places
- Michigan 7,221 aircraft registered
The whole map of how records connect · these connections as data: /graph/airport/PHN.json.
Facts from the FAA's airport file effective October 1, 2026, written out in plain English; weather from the National Weather Service's aviation weather service; registered aircraft from the FAA register as of October 26, 2026; accidents from the NTSB's public database. Owners are shown only when they are an organisation; no person is named. Check the official sources before a flight: this page is for understanding an airport, not for planning one.