Distance From Griswold Airport to Antonio B. Won Pat International Airport

The distance from Griswold Airport () to Antonio B. Won Pat International Airport (GUM) is 7966 miles or 12820 kilometers or 6918 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.

---

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

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

Estimated flight time from Griswold Airport, Madison, United States to Antonio B. Won Pat International Airport, Hagåtña, Guam is 18 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 • - GUM

Kilometers		12820 km
Statute Miles		7966 miles
Nautical Miles		6918 nm
Avg. Time of Flight		18 hours 18 minutes

Griswold Airport to Antonio B. Won Pat International Airport Flight Route Map - to GUM Flight Path

Location of Griswold Airport & Antonio B. Won Pat International Airport is given below.
Click the map to view Madison to Hagåtña nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • - GUM

Time difference between Madison (United States) and Hagåtña (Guam) is 15 Hours.
Hagåtña time is 15 Hours ahead of Madison.

Location	Local Time
Madison (United States)	2025-12-06, 02:06:23 EST
Hagåtña (Guam)	2025-12-06, 17:06:23 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

Griswold Airport ( / ) Madison, United States

Destination

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