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$1,311+ 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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GUM
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap flight deals from Washington to Guam

Keep the following information in mind while searching for Washington to Guam flight deals. Data was last updated April 24, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,644
(Delta)

One-way from

$1,471
(Delta)

Popular in

December

Cheapest in

March

Average price

$1,866
Provider with most accurate pricing for Seattle/Tacoma Intl-Tamuning Guam Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Tamuning Guam Intl flights.
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From Washington to Guam
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One-way flight from Washington to Guam
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Highest demand for flights based on searches. 3% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 24, 2025.

This Delta deal was found by Cheapflights users on 4/21. 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.
Fri 11/1411:15 amSEA - GUM
1 stop33h 20mDelta
Mon 11/244:50 pmGUM - SEA
1 stop38h 15mDelta
Deal found 4/21$1,594
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 10/85:30 amPDX - GUM
2 stops19h 35mUnited Airlines
Wed 10/156:55 amGUM - PDX
2 stops28h 37mUnited Airlines
Deal found 4/23$1,817
This United Airlines deal was found by Cheapflights users on 4/21. 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 11/145:36 amSEA - GUM
2 stops19h 14mUnited Airlines
Mon 11/247:25 amGUM - SEA
3 stops26h 00mUnited Airlines
Deal found 4/21$1,867
This Delta deal was found by Cheapflights users on 4/23. 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 10/85:55 amPDX - GUM
2 stops40h 20mDelta
Tue 10/141:55 amGUM - PDX
2 stops34h 18mDelta
Deal found 4/23$1,918
This Delta deal was found by Cheapflights users on 4/22. 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 4/229:05 amGEG - GUM
2 stops37h 10mDelta
Sat 4/265:00 pmGUM - GEG
2 stops46h 50mDelta
Deal found 4/22$2,679
This United deal was found by Cheapflights users on 4/22. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2210:00 amSEA - GUM
1 stop15h 05mMultiple Airlines
Wed 9/247:05 pmGUM - SEA
2 stops36h 14mMultiple Airlines
Deal found 4/22$2,703
This Hawaiian Airlines deal was found by Cheapflights users on 4/21. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1612:30 pmSEA - GUM
1 stop32h 05mHawaiian Airlines
Thu 1/84:35 pmGUM - SEA
1 stop35h 30mHawaiian Airlines
Deal found 4/21$2,724
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 9/247:23 amGEG - GUM
2 stops28h 02mUnited Airlines
Wed 10/16:55 amGUM - GEG
2 stops25h 24mUnited Airlines
Deal found 4/23$3,650

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 April 24, 2025.
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

Wed 5/7

12:40 pm-3:15 pm

1 stop33h 35m

Tamuning Guam Intl

Mon 6/2

5:00 pm-1:40 pm

1 stop37h 40m

$1,699

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 10/8

5:30 am-6:05 pm

2 stops19h 35m

Tamuning Guam Intl

Wed 10/15

6:55 am-6:32 pm

2 stops28h 37m

$1,817

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Tue 7/15

5:10 am-6:05 pm

2 stops19h 55m

Tamuning Guam Intl

Tue 7/29

7:00 am-8:56 pm

3 stops30h 56m

$1,917

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 10/8

5:55 am-3:15 pm

2 stops40h 20m

Tamuning Guam Intl

Tue 10/14

1:55 am-7:13 pm

2 stops34h 18m

$1,918

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sat 4/26

8:15 am-6:15 pm

1 stop17h 00m

Tamuning Guam Intl

Mon 4/28

7:00 am-2:18 pm

2 stops24h 18m

$3,173

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Fri 5/23

1:45 pm-2:40 pm

1 stop31h 55m

Tamuning Guam Intl

Mon 6/23

4:40 pm-11:40 am

1 stop36h 00m

$3,874

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Wed 6/4

1:45 pm-2:40 pm

1 stop31h 55m

$1,311

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sat 6/7

12:55 pm-3:15 pm

1 stop33h 20m

$1,471

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 10/1

5:30 am-6:05 pm

2 stops19h 35m

$1,574

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Wed 6/4

7:20 am-6:05 pm

3 stops41h 45m

$1,610

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 11 results
1
2

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, January is the cheapest month in which you can book a flight from State of Washington to Guam (average of $1,977). Flying from State of Washington to Guam in May is currently the most expensive (average of $2,214). 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.

What is the cheapest time of day to fly from WA to GU?

Find hourly flight availability from Washington to Guam. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

When flying from State of Washington to Guam, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Guam by month

Plan your trip to Guam by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Guam ranges from 2.6 - 14.4 inches per month. August is typically the wettest month, when rainfall can reach 14.4 in. March is typically the driest time to visit Guam when rainfall is around 2.6 in.

Temperature in Guam by month

Plan your trip to Guam by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Guam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

Reviews of airlines servicing Guam

Get insights into the airlines that provide service to Guam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Guam. Reviews last updated April 24, 2025.
Read reviews from past customers who have flown Delta, Hawaiian Airlines and United Airlines from Washington to Guam. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Hawaiian Airlines
7.9
Good
2,393 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,685 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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, January is the cheapest month in which you can book a flight from State of Washington to Guam (average of $1,977). Flying from State of Washington to Guam in May is currently the most expensive (average of $2,214). 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,360Average$2,041FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,542Average$1,643FlexibilityNo cancel feeOn-timeN/A

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