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Washington to Guam flights take around 17 hours 30 minutes to 21 hours with one connection. The distance from Washington D.C. to Guam sits at roughly 7,985 miles (12,851 kilometers), and all flights require at least one stop. Most travelers fly out of Washington Dulles International Airport (IAD), which has daily connecting flights to Guam (GUM). Connection points typically include Washington Dulles, Atlanta, or Miami. Guam is +15 hours ahead of Washington time.
Connecting flights from Washington to Guam run about 17 hours 30 minutes to 21 hours. Flying via Washington Dulles typically offers the shortest total travel time.
United Airlines and Delta Air Lines operate the most weekly departures from Washington D.C.. American Airlines also runs regular service.
Layovers typically last 2 to 4 hours. Longer connections sometimes cost $150 to $300 less.
Guam is +15 hours ahead of Washington during standard time.
Plan for connection time at hub airports. Short layovers (under 90 minutes) can get tight if your first flight runs late.
Shoulder season months tend to be cheaper than peak travel periods.
How long is the flight from Washington to Guam?
The flight from Washington to Guam takes around 17 hours 30 minutes to 21 hours with one connection. Flights routing through Washington Dulles typically fall on the shorter end.
How far is it from Washington to Guam?
The distance from Washington D.C. to Guam is approximately 7,985 miles (12,851 kilometers). This long-haul route requires at least one connection.
What is the time difference between Washington and Guam?
Guam is +15 hours ahead of Washington.
Are there direct flights from Washington to Guam?
No, there are no direct flights from Washington to Guam as of 2025. All flights require at least one connection, typically through Washington Dulles, Atlanta, or Miami.
Which airlines fly from Washington to Guam?
United Airlines, Delta Air Lines, American Airlines, Hawaiian Airlines, and Alaska Airlines operate connecting service from Washington D.C. to Guam. United Airlines has the most weekly departures.
Planning beyond this route? Explore more flight times, distances, and travel durations using our tools below. Start with our Flight Time Calculator to estimate journey times worldwide, or browse average travel times from your departure city using the Washington Flight Times.
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