Reference data only — not for flight planning or navigation. Verify with official sources (AIP, NOTAMs, ATC). Full disclaimer
St Clair County International Airport (KPHN/PHN) — Port Huron, United States
At a glance
- Operating hours
- 12:00–21:00 UTC
- Port of entry
- Yes, with conditions
- Fuel
- 100LL, Jet A+
- Runways
- 04/22, 10/28
- Elevation
- 650 ft
Times in UTC. Reference only: verify with the AIP and NOTAMs.
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81%
Data Complete
42 of 52 points
Missing: Contacts
Section Breakdown
Basic Info
7/7
Runways
4/4
Frequencies
2/4
Operations
2/2
Fuel
1/1
Contacts
0/2
Additional Info
5/10
Data last updated:
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See a next to a field? Click it to confirm the info is still correct. Recently verified Outdated — please verify
Basic Airport Information
- ICAO: KPHN
- Name: St Clair County International Airport
- Type: small_airport
- Category: International
- Latitude: 42.910999
- Longitude: -82.5289
- Elevation: 650 ft
- Country: United States
- Municipality: Port Huron
- IATA Code: PHN
- FAA Code: N/A
- FIR: N/A
- Timezone: America/Detroit
- Distance from City: N/A km
- VFR: Yes
- IFR: No
Runways
Runway 04/22
- Designation: 04/22
- Dimensions: 1556x30m
- Surface: ASP
- PCN: N/A
- Lighting: Lighted
- NAVAIDs: N/A
- Approach Types: N/A
- Remarks: N/A
Runway 10/28
- Designation: 10/28
- Dimensions: 1219x23m
- Surface: ASP
- PCN: N/A
- Lighting: Lighted
- NAVAIDs: N/A
- Approach Types: N/A
- Remarks: N/A
Frequencies
- Tower: N/A
- Ground: N/A
- Operations: 123.050 MHz
- Traffic/Approach: N/A
- ATIS: 118.375 MHz
Operation Hours
Monday
12:00
–
21:00
Tuesday
12:00
–
21:00
Wednesday
12:00
–
21:00
Thursday
12:00
–
21:00
Friday
12:00
–
21:00
Saturday
12:00
–
21:00
Sunday
12:00
–
21:00
- Extra Hours On Request: Not recorded
- Remarks: Unattended. Check NOTAMs for current hours.
Contacts
- AIS Tel: N/A
- ARO Tel: N/A
- MET Tel: N/A
- Admin Tel: +1 810-364-6890
- Health Tel: N/A
- Police Tel: N/A
- Authorities Tel: N/A
- Website: N/A
- Remarks: N/A
Slots / PPR
- Slot Required: Not recorded
- PPR Required: Not recorded
- PPR Contact: N/A
- Remarks: N/A
Customs
- Open: N/A
- Close: N/A
- Phone: N/A
- Extra Hours On Request: Not recorded
- Remarks: Customs available per FAA NASR data
Fuel Information
- Fuel (FAA, public use): 100LL, Jet A+ Source: FAA NASR airport data, cycle 2026-10-01
Immigration
- Port of Entry: Yes, with conditions: Transatlantic flights must notify US Customs one hour before entering the US (NASR) Source: 19 CFR 122.13 List of international airports, 2026-10-13
- APIS Required: Yes
- GAR Required: Not recorded
Airport Services
No services listed for this airport yet.
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United States Permit Requirements
Fast
Landing: 1d
- Overflight Permit: No
- Landing Permit: Conditional
- Overflight Lead Time: N/A
- Landing Lead Time: 60 minutes minimum (eAPIS manifest before departure); recommend 24-48 hours for CBP port notification
Private / GA Operations:
No permits required for private non-revenue flights. eAPIS manifest mandatory for all international arrivals/departures.
Active NOTAMs
10/022
info
AD AP MOBILE 100LL FUEL NOT AVBL
2026-10-26 15:02 UTC
2026-10-28 16:00 UTC
10/009
info
OBST TOWER LGT (ASR 1000377) 425535.00N0822750.00W (3NM E PHN) 821FT (220FT AGL) U/S
2026-10-16 11:51 UTC
2026-11-30 11:51 UTC
NOTAMs received from the FAA NOTAM feed (last message 2026-10-27 19:05 UTC). This list is built from the feed as NOTAMs are issued and is not checked against the FAA's full list: confirm with FAA NOTAM Search before flight.
View all NOTAMs on Map
Nearby Airports
Airport History
No milestones recorded for St Clair County International Airport yet. Know when it opened, who built it or a notable event? Add it with a source.
Add a historical factFrequently Asked Questions
- What are the operating hours of KPHN?
- St Clair County International Airport operates from 12:00 to 21:00.
- What fuel is available at KPHN?
- The FAA lists 100LL, Jet A+ for public use at St Clair County International Airport. Source: FAA NASR airport data, cycle 2026-10-01.
- Does KPHN require landing permits?
- It depends on the flight. No permits required for private non-revenue flights. eAPIS manifest mandatory for all international arrivals/departures. Permit details for United States
- Where is KPHN located?
- St Clair County International Airport (KPHN) is located in Port Huron, United States.
- What is the IATA code for KPHN?
- The IATA code for St Clair County International Airport is PHN.
- How long is the runway at KPHN?
- The main runway at St Clair County International Airport (04/22) measures 1556x30m.
- Is KPHN a port of entry?
- Yes, with conditions. Transatlantic flights must notify US Customs one hour before entering the US (NASR). Source: 19 CFR 122.13 List of international airports, 2026-10-13.