$569 Cheap Flights from Seattle (SEA) to Guam (GUM)

View $569 flight on Sun, Sep 13, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Barrigada - A.B. Won Pat International Airport (GUM)

Cheap Flights from Seattle to Guam (SEA-GUM)

Prices were available within the past 7 days and start at $569 for one-way flights and $1,045 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sun, Sep 13 - Wed, Sep 23
SEA
Seattle
GUM
Guam
$1,045 Roundtrip, just found
$1,045
Roundtrip
just found
Select Alaska Airlines flight, departing Sun, Sep 13 from Seattle to Guam, returning Wed, Sep 23, priced at $1,045 just found
Alaska Airlines
Tue, Sep 1 - Tue, Sep 22
SEA
Seattle
GUM
Guam
$1,055 Roundtrip, found 1 day ago
$1,055
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Sep 1 from Seattle to Guam, returning Tue, Sep 22, priced at $1,055 found 1 day ago
Alaska Airlines
Mon, Aug 17 - Thu, Aug 27
SEA
Seattle
GUM
Guam
$1,178 Roundtrip, found 4 days ago
$1,178
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Aug 17 from Seattle to Guam, returning Thu, Aug 27, priced at $1,178 found 4 days ago
Alaska Airlines
Tue, Apr 7 - Thu, Apr 16
SEA
Seattle
GUM
Guam
$1,228 Roundtrip, found 1 day ago
$1,228
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Apr 7 from Seattle to Guam, returning Thu, Apr 16, priced at $1,228 found 1 day ago
Alaska Airlines
Tue, Apr 7 - Thu, Apr 16
SEA
Seattle
GUM
Guam
$1,231 Roundtrip, found 1 day ago
$1,231
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Apr 7 from Seattle to Guam, returning Thu, Apr 16, priced at $1,231 found 1 day ago
Alaska Airlines
Sun, Sep 13 - Sat, Sep 19
SEA
Seattle
GUM
Guam
$1,266 Roundtrip, found 2 days ago
$1,266
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sun, Sep 13 from Seattle to Guam, returning Sat, Sep 19, priced at $1,266 found 2 days ago
Alaska Airlines
Mon, Jan 12 - Mon, Jan 26
SEA
Seattle
GUM
Guam
$1,303 Roundtrip, found 1 day ago
$1,303
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Jan 12 from Seattle to Guam, returning Mon, Jan 26, priced at $1,303 found 1 day ago
United
Fri, Dec 5 - Sun, Dec 7
SEA
Seattle
GUM
Guam
$1,365 Roundtrip, just found
$1,365
Roundtrip
just found
Select United flight, departing Fri, Dec 5 from Seattle to Guam, returning Sun, Dec 7, priced at $1,365 just found
Hawaiian Airlines
Tue, Apr 7 - Thu, Apr 16
SEA
Seattle
GUM
Guam
$1,449 Roundtrip, found 1 day ago
$1,449
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Apr 7 from Seattle to Guam, returning Thu, Apr 16, priced at $1,449 found 1 day ago
Delta
Mon, Apr 13 - Sun, May 10
SEA
Seattle
GUM
Guam
$1,544 Roundtrip, found 2 hours ago
$1,544
Roundtrip
found 2 hours ago
Select Delta flight, departing Mon, Apr 13 from Seattle to Guam, returning Sun, May 10, priced at $1,544 found 2 hours ago

Find the cheapest month to fly from Seattle (SEA) to Barrigada (GUM)

September is typically the cheapest month to fly

From $1,105 - $2,306 per traveler.

Alternative airports near Barrigada

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to A.B. Won Pat Intl. GUM. Cheapest option available. Flights from $1,594
GUM
A.B. Won Pat Intl.
Cheapest
Flights from $1,594

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to A.B. Won Pat Intl. Airport (GUM) cost?
Lock in a cheap one-way flight from $569 or cheap return flight from $1,045 from Seattle - Tacoma Intl. Airport (SEA) to A.B. Won Pat Intl. Airport (GUM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to A.B. Won Pat Intl. Airport (GUM)?
Planning your getaway for September is a great way to save, as it's the cheapest month for flights between SEA and GUM. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to A.B. Won Pat Intl. Airport (GUM)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from SEA to GUM. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to A.B. Won Pat Intl. Airport (GUM)?
You'll have to hop on a flight with a layover when traveling from Seattle - Tacoma Intl. Airport (SEA) to A.B. Won Pat Intl. Airport (GUM). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from SEA to GUM?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary based on a range of factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to A.B. Won Pat Intl. Airport (GUM)?
To land at A.B. Won Pat Intl. Airport (GUM) without delays, select a flight that leaves Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to A.B. Won Pat Intl. Airport (GUM) last-minute?
Holding off until just before your trip to book a flight from SEA to GUM generally means paying more. While you might find some last-minute deals, there's no guarantee. Be flexible with your travel plans to boost your chances of landing a bargain.
Is it cheaper to book a SEA to GUM flight and hotel package?
Securing a SEA to GUM flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our extensive range of hotels and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to A.B. Won Pat Intl. Airport (GUM)?
Typically, you can cancel or modify your SEA to GUM flight. However, additional charges may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you'd like further information, visit our Customer Service portal.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
A.B. Won Pat Intl.
Airlines serving
Delta, United
Roundtrip price
$1,045
Distance
5667 mi

Book with confidence

Seattle to Guam Flights

The cheapest times to fly from Seattle to Guam

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Guam are during the month of September. You can find some of the cheapest flights from Seattle to Guam with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Guam

Sunday is one of the best days to book for cheap flights from Seattle to Guam: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Guam

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Guam in 2025. You can also book with separate airlines for your outbound and return journeys, from $569 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Guam flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Guam airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Guam Flights
*Available to One Key members.