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Guam

$479+ Cheap flights from Washington to Guam

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GUM
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from Washington to Guam

Cheapest flights from Washington to Guam
Explore the most affordable flight options available from Washington to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

This Expedia deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/261:40 pm
SEA
-
GUM
1 stop39h 25m
Multiple Airlines
Sat 3/144:50 pm
GUM
-
SEA
1 stop38h 55m
Multiple Airlines
Deal found 2/2$1,115
This Kiwi.com deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/302:40 pm
SEA
-
GUM
1 stop19h 55m
Multiple Airlines
Sun 4/54:40 am
GUM
-
SEA
2 stops31h 23m
Multiple Airlines
Deal found 2/3$1,209
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/81:00 pm
SEA
-
GUM
1 stop33h 15m
Delta
Tue 4/283:00 am
GUM
-
SEA
1 stop27h 07m
Delta
Deal found 2/1$1,545
This Delta deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:00 pm
SEA
-
GUM
1 stop17h 55m
Delta
Mon 4/275:00 pm
GUM
-
SEA
2 stops42h 30m
Delta
Deal found 2/4$1,549
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:30 am
SEA
-
GUM
1 stop33h 05m
Delta
Sun 3/81:00 am
GUM
-
SEA
1 stop30h 20m
Delta
Deal found 2/2$1,595
This Delta deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:30 am
SEA
-
GUM
1 stop17h 35m
Delta
Wed 3/111:00 am
GUM
-
SEA
2 stops39h 38m
Delta
Deal found 2/3$1,599
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:30 am
PDX
-
GUM
2 stops19h 35m
United Airlines
Tue 5/57:05 am
GUM
-
PDX
2 stops26h 28m
United Airlines
Deal found 2/2$1,819
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:02 am
GEG
-
GUM
2 stops39h 13m
United Airlines
Fri 12/187:25 am
GUM
-
GEG
2 stops21h 59m
United Airlines
Deal found 2/2$1,939
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/115:25 am
PDX
-
GUM
2 stops19h 40m
United Airlines
Sat 4/257:30 pm
GUM
-
PDX
2 stops36h 01m
United Airlines
Deal found 2/3$1,943
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/128:35 am
PDX
-
GUM
2 stops40h 30m
United Airlines
Sun 7/267:30 pm
GUM
-
PDX
2 stops38h 17m
United Airlines
Deal found 2/3$1,959
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:15 am
PDX
-
GUM
2 stops19h 50m
United Airlines
Fri 6/57:05 am
GUM
-
PDX
2 stops19h 58m
United Airlines
Deal found 2/3$1,969
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:00 am
PDX
-
GUM
2 stops18h 05m
United Airlines
Sun 7/267:30 pm
GUM
-
PDX
2 stops42h 24m
United Airlines
Deal found 2/3$1,993

Find flight deals from Washington to Guam

Keep the following information in mind while searching for Washington to Guam flight deals. Data was last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,115
(Expedia)

One-way from

$479
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,817
Provider with most accurate pricing for Seattle/Tacoma Intl-Tamuning Guam Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Tamuning Guam Intl flights.
Search Deals
From Washington to Guam
Search Deals
One-way flight from Washington to Guam
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($66 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Guam that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from Washington to Guam that are best for you.

Fly from

Washington

Fly to

Guam

Route

Depart

Return

Price

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Tue 4/21

1:00 pm-11:55 pm

1 stop17h 55m

Tamuning Guam Intl

Mon 4/27

5:00 pm-1:07 pm

1 stop37h 07m

$1,545

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Thu 4/9

1:00 pm-11:55 pm

1 stop17h 55m

Tamuning Guam Intl

Wed 4/29

3:00 am-1:07 pm

1 stop27h 07m

$1,545

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Wed 4/8

1:00 pm-3:15 pm

1 stop33h 15m

Tamuning Guam Intl

Tue 4/28

3:00 am-1:07 pm

1 stop27h 07m

$1,545

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Mon 3/2

11:30 am-2:35 pm

1 stop33h 05m

Tamuning Guam Intl

Sun 3/8

1:00 am-2:20 pm

1 stop30h 20m

$1,595

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Thu 3/5

11:30 am-11:05 pm

1 stop17h 35m

Tamuning Guam Intl

Wed 3/11

1:00 am-2:20 pm

1 stop30h 20m

$1,595

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Tue 3/17

12:35 pm-11:05 pm

1 stop17h 30m

Tamuning Guam Intl

Thu 3/26

1:00 am-2:20 pm

1 stop30h 20m

$1,645

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Thu 2/26

5:30 am-11:05 pm

2 stops23h 35m

Tamuning Guam Intl

Sat 3/14

4:50 pm-2:20 pm

1 stop38h 30m

$1,650

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Tue 4/28

5:30 am-6:05 pm

2 stops19h 35m

Tamuning Guam Intl

Tue 5/5

7:05 am-4:33 pm

2 stops26h 28m

$1,819

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 7/13

5:15 am-6:05 pm

2 stops19h 50m

Tamuning Guam Intl

Sun 7/26

7:30 pm-8:54 pm

2 stops42h 24m

$1,943

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 4/11

5:25 am-6:05 pm

2 stops19h 40m

Tamuning Guam Intl

Sat 4/25

7:30 pm-2:31 pm

2 stops36h 01m

$1,943

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 42 results
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Best time to book a flight from Washington to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Guam

What is the cheapest month to book a flight from State of Washington to Guam?

Currently, June is the cheapest month in which you can book a flight from State of Washington to Guam (average of $324). Flying from State of Washington to Guam in December is currently the most expensive (average of $1,979). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Washington to Guam. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from State of Washington to Guam?

    There are many flights that can get you from State of Washington to Guam in 17h 55m. Fly via Delta or United Airlines to get the fastest option. There are 5664 mi between State of Washington and Guam. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Washington to Guam that include hotel bookings?

    Yes. In addition to deals on Washington to Guam flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Guam?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Guam.

  • Can I find deals for business class flights from Washington to Guam?

    Yes. Cheapflights offers flight deals from Washington to Guam by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Guam?

    Currently, June is the cheapest month in which you can book a flight from State of Washington to Guam (average of $324). Flying from State of Washington to Guam in December is currently the most expensive (average of $1,979). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from Washington to Guam

Discover the top 2 airlines that operate flights from Washington to Guam. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$447Average$2,197FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,543Average$1,594FlexibilityNo cancel feeOn-timeN/A

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