Distance From H.A. Clark Memorial Field to Antonio B. Won Pat International Airport

The distance from H.A. Clark Memorial Field () to Antonio B. Won Pat International Airport (GUM) is 6392 miles or 10287 kilometers or 5551 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 Williams ( United States ) to Hagåtña ( Guam )?

A one-way nonstop (direct) flight between Williams and Hagåtña takes around 14 hours 41 minutes.

Estimated flight time from H.A. Clark Memorial Field, Williams, United States to Antonio B. Won Pat International Airport, Hagåtña, Guam is 14 hours 41 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 • - GUM

Kilometers		10287 km
Statute Miles		6392 miles
Nautical Miles		5551 nm
Avg. Time of Flight		14 hours 41 minutes

H.A. Clark Memorial Field to Antonio B. Won Pat International Airport Flight Route Map - to GUM Flight Path

Location of H.A. Clark Memorial Field & Antonio B. Won Pat International Airport is given below.
Click the map to view Williams to Hagåtña nonstop flight path and travel direction.

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

Nonstop flight route between Williams, United States and Hagåtña, Guam.

Time Difference Between the Airports • - GUM

Time difference between Williams (United States) and Hagåtña (Guam) is 17 Hours.
Hagåtña time is 17 Hours ahead of Williams.

Location	Local Time
Williams (United States)	2026-11-08, 18:06:09 MST
Hagåtña (Guam)	2026-11-09, 11:06:09 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

H.A. Clark Memorial Field ( / KCMR) Williams, United States

Destination

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