$531 Cheap Flights from Seattle (SEA) to Guam (GUM)

View $531 flight on Mon, Apr 20, 2026Opens in a new window

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

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Cheap Flights from Seattle to Guam (SEA-GUM)

Prices were available within the past 7 days and start at $531 for one-way flights and $1,065 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Mar 30 - Tue, Apr 14
SEA
Seattle
GUM
Guam
$1,065 Roundtrip, just found
$1,065
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Mar 30 from Seattle to Guam, returning Tue, Apr 14, priced at $1,065 just found
Alaska Airlines
Thu, Apr 2 - Sun, Apr 19
SEA
Seattle
GUM
Guam
$1,115 Roundtrip, found 6 hours ago
$1,115
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Thu, Apr 2 from Seattle to Guam, returning Sun, Apr 19, priced at $1,115 found 6 hours ago
Alaska Airlines
Sun, Apr 12 - Wed, Apr 15
SEA
Seattle
GUM
Guam
$1,115 Roundtrip, found 4 days ago
$1,115
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sun, Apr 12 from Seattle to Guam, returning Wed, Apr 15, priced at $1,115 found 4 days ago
Alaska Airlines
Fri, Apr 17 - Sat, May 9
SEA
Seattle
GUM
Guam
$1,153 Roundtrip, found 11 hours ago
$1,153
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Fri, Apr 17 from Seattle to Guam, returning Sat, May 9, priced at $1,153 found 11 hours ago
Alaska Airlines
Wed, Apr 1 - Fri, Apr 17
SEA
Seattle
GUM
Guam
$1,165 Roundtrip, found 9 hours ago
$1,165
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Wed, Apr 1 from Seattle to Guam, returning Fri, Apr 17, priced at $1,165 found 9 hours ago
Alaska Airlines
Mon, Apr 6 - Mon, Apr 13
SEA
Seattle
GUM
Guam
$1,190 Roundtrip, found 5 hours ago
$1,190
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Mon, Apr 6 from Seattle to Guam, returning Mon, Apr 13, priced at $1,190 found 5 hours ago
Alaska Airlines
Wed, Mar 25 - Mon, Apr 6
SEA
Seattle
GUM
Guam
$1,190 Roundtrip, found 4 days ago
$1,190
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Mar 25 from Seattle to Guam, returning Mon, Apr 6, priced at $1,190 found 4 days ago
Alaska Airlines
Tue, Sep 8 - Mon, Sep 14
SEA
Seattle
GUM
Guam
$1,191 Roundtrip, found 10 hours ago
$1,191
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Tue, Sep 8 from Seattle to Guam, returning Mon, Sep 14, priced at $1,191 found 10 hours ago
United
Sun, Apr 12 - Tue, Apr 14
SEA
Seattle
GUM
Guam
$1,351 Roundtrip, found 6 days ago
$1,351
Roundtrip
found 6 days ago
Select United flight, departing Sun, Apr 12 from Seattle to Guam, returning Tue, Apr 14, priced at $1,351 found 6 days ago
Delta
Mon, Oct 12 - Mon, Nov 23
SEA
Seattle
GUM
Guam
$1,545 Roundtrip, found 6 hours ago
$1,545
Roundtrip
found 6 hours ago
Select Delta flight, departing Mon, Oct 12 from Seattle to Guam, returning Mon, Nov 23, priced at $1,545 found 6 hours ago

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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 $1,315
GUM
A.B. Won Pat Intl.
Cheapest
Flights from $1,315

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

September is typically the cheapest month to fly

From $1,095 - $2,305 per traveler.

Frequently asked questions

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.) cost?
You can find cheap one-way flights from $531 and cheap return flights from $1,065 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.) with Expedia. One-way flights typically cost between $1505 and $8513, and return flights often range between $1991 and $9431. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.)?
April is the cheapest month to fly from Seattle to Guam, with average return fares around $1,890. This is about 12% lower than the average price throughout the year, as travel demand is typically lower during this time. Other budget-friendly months to fly from Seattle to Guam include May and July.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.)?
Enter SEA to GUM and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.)?
Alaska Airlines is one of the cheapest airlines offering connecting flights from Seattle - Tacoma Intl. (SEA) to A.B. Won Pat Intl. (GUM), starting from around $1,214 for a round-trip ticket. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.)?
To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.)?
For flights from Seattle to Guam, April and July are the best months to travel. In April, you can find return flights for about $1,890, while July is popular for its warm weather and vibrant atmosphere. Both months provide a great balance of price and travel experience, making them ideal for your trip. This information is based on booking data from the past year.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.)?
The earliest flight from Seattle - Tacoma International Airport (SEA) to Guam (GUM) typically departs at around 12:20 AM local time, operated by United Airlines. This is a seasonal service active in July and August, and an early departure like this can help you maximize your time in Guam. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.)?
The most popular departure times for flights from Seattle (SEA) to Guam (GUM) are from 12pm to 3pm. About 25% of passengers prefer this time window. Many major carriers, including United Airlines and Delta, offer flights during this window. This timing is favored as it allows you to enjoy your morning before your journey.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.)?
Flying from SEA to GUM with a connection usually takes about 17 hours 50 minutes, traveling roughly 5,668 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.)?
Business class seats are offered on the SEA to GUM route. Airlines that offer business class service on this route include:

  • Delta Air Lines
  • Qatar Airways
  • Hawaiian Airlines

How do I earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Guam from Seattle - Tacoma Intl. (SEA)?
From Seattle - Tacoma Intl. (SEA), you can fly into A.B. Won Pat Intl. (GUM) to reach Guam. Some flights may connect through major hubs like San Francisco Intl. (SFO), Los Angeles Intl. (LAX), Denver Intl. (DEN) before reaching Guam. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.) flight and hotel package?
Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals 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, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.)?
If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Guam (GUM-A.B. Won Pat Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
A.B. Won Pat Intl.
Airlines serving
Delta, United
Roundtrip price
$1,064
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 March. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $531 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

*Flight schedules are subject to change.

*Available to One Key members.