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?

St Clair County International Airport offers 100LL, Jet A+.

Does KPHN require landing permits?

Yes, landing permits are required for St Clair County International Airport (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, St Clair County International Airport is a port of entry where international flights can clear customs and immigration.

Reference data only — not for flight planning or navigation. Verify with official sources (AIP, NOTAMs, ATC). Full disclaimer

St Clair County International Airport (KPHN) — Port Huron, United States

St Clair County International Airport (KPHN/PHN) serves Port Huron, United States. This is a small airport with 2 runways (04/22, 10/28). Field elevation is 650 ft AMSL. Data on this page is maintained by the aviation community — contribute to keep it accurate.

This information may contain errors or be outdated. Create a free account to suggest corrections and earn points.

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: 2026-03-27

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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: No
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: No
PPR Required: No
PPR Contact: N/A
Remarks: N/A

Customs

Open: N/A
Close: N/A
Phone: N/A
Extra Hours On Request: No
Remarks: Customs available per FAA NASR data

Fuel Information

Fuel Type: 100LL
Price/L: N/A
Last Updated: N/A
Remarks: N/A

Fuel Type: Jet A+
Price/L: N/A
Last Updated: N/A
Remarks: N/A

Immigration

Port of Entry: Yes
GENDEC Required: Yes
GAR Required: No
Remarks: FAA customs airport of entry. eAPIS required for international arrivals/departures.

See all airports of entry in United States →

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.

View Full United States Permit Details

Active NOTAMs

07/003 info

!PHN 07/003 PHN OBST TOWER LGT (ASR UNKNOWN) 425526.49N0822736.82W (3.7NM E PHN) 872FT (275FT AGL) U/S 2607091351-2701092359

2026-07-09 13:51:00 2027-01-09 23:59:00

06/006 info

!PHN 06/006 PHN RWY 28 PAPI U/S 2606231917-2612312359

2026-06-23 19:17:00 2026-12-31 23:59:00

06/005 info

!PHN 06/005 PHN RWY 22 PAPI U/S 2606231916-2612312359

2026-06-23 19:16:00 2026-12-31 23:59:00

+1 more active NOTAM

View all NOTAMs on Map

Nearby Airports

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Compare KPHN with 2E2 side by side →

Airport History

Discover the key milestones and historical events that shaped St Clair County International Airport. Our community-powered timeline traces this airport's journey from its origins to the present day.

Explore History

Frequently 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?: St Clair County International Airport offers 100LL, Jet A+.
Does KPHN require landing permits?: Yes, landing permits are required for St Clair County International Airport (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, St Clair County International Airport is a port of entry where international flights can clear customs and immigration.

View on Map