Distance From St Clair County International Airport to Antonio B. Won Pat International Airport, PHN - GUM Distance

The distance from St Clair County International Airport (PHN) to Antonio B. Won Pat International Airport (GUM) is 7525 miles or 12110 kilometers or 6535 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Port Huron ( United States ) to Hagåtña ( Guam )?

A one-way nonstop (direct) flight between Port Huron and Hagåtña takes around 17 hours 18 minutes.

Estimated flight time from St Clair County International Airport, Port Huron, United States to Antonio B. Won Pat International Airport, Hagåtña, Guam is 17 hours 18 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • PHN - GUM

Kilometers		12110 km
Statute Miles		7525 miles
Nautical Miles		6535 nm
Avg. Time of Flight		17 hours 18 minutes

St Clair County International Airport to Antonio B. Won Pat International Airport Flight Route Map - PHN to GUM Flight Path

Location of St Clair County International Airport & Antonio B. Won Pat International Airport is given below.
Click the map to view Port Huron to Hagåtña nonstop flight path and travel direction.

Click to see flight route on Google Map between Port Huron, United States and Hagåtña, Guam. .

Nonstop flight route between Port Huron, United States and Hagåtña, Guam.

Time Difference Between the Airports • PHN - GUM

Time difference between Port Huron (United States) and Hagåtña (Guam) is 14 Hours.
Hagåtña time is 14 Hours ahead of Port Huron.

Location	Local Time
Port Huron (United States)	2026-05-07, 11:32:34 EDT
Hagåtña (Guam)	2026-05-08, 01:32:34 ChST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

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

Destination

Antonio B. Won Pat International Airport (GUM / PGUM) Hagåtña, Guam