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$1,313+ 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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GUM
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$1,544
(Delta)

One-way from

$1,313
(Hawaiian Airlines)

Popular in

December

Cheapest in

March

Average price

$2,149
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. 4% potential increase in price ($87 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 June 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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 10/712:25 pmSEA - GUM
1 stop33h 50mDelta
Mon 10/131:55 amGUM - SEA
1 stop28h 35mDelta
Deal found 6/10$1,544
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Thu 11/205:30 amSEA - GUM
2 stops19h 20mUnited Airlines
Thu 12/47:25 amGUM - SEA
3 stops31h 47mUnited Airlines
Deal found 6/9$1,817
This United Airlines deal was found by Cheapflights users on 6/10. 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 11/237:30 amPDX - GUM
2 stops41h 20mUnited Airlines
Fri 12/57:25 amGUM - PDX
2 stops25h 17mUnited Airlines
Deal found 6/10$1,890
This Delta deal was found by Cheapflights users on 6/10. 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.
Sat 11/2212:40 amPDX - GUM
2 stops43h 55mDelta
Fri 12/54:50 pmGUM - PDX
2 stops45h 59mDelta
Deal found 6/10$1,953
This United deal was found by Cheapflights users on 6/10. 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.
Wed 10/16:55 pmSEA - GUM
1 stop30h 10mMultiple Airlines
Sun 10/127:10 amGUM - SEA
2 stops21h 46mMultiple Airlines
Deal found 6/10$2,221
This Hawaiian Airlines deal was found by Cheapflights users on 6/12. 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.
Thu 6/191:40 pmSEA - GUM
1 stop32h 00mHawaiian Airlines
Sat 7/124:40 pmGUM - SEA
1 stop36h 00mHawaiian Airlines
Deal found 6/12$2,577
This United Airlines deal was found by Cheapflights users on 6/10. 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 6/147:25 amGEG - GUM
2 stops27h 55mUnited Airlines
Mon 6/167:00 pmGUM - GEG
2 stops36h 47mUnited Airlines
Deal found 6/10$3,098

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 June 12, 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

Tue 10/7

12:25 pm-3:15 pm

1 stop33h 50m

Tamuning Guam Intl

Mon 10/13

1:55 am-1:30 pm

1 stop28h 35m

$1,544

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Thu 11/20

5:30 am-6:50 pm

2 stops19h 20m

Tamuning Guam Intl

Thu 12/4

7:25 am-9:12 pm

3 stops31h 47m

$1,817

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 11/23

7:30 am-6:50 pm

2 stops41h 20m

Tamuning Guam Intl

Fri 12/5

7:25 am-2:42 pm

2 stops25h 17m

$1,890

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 11/22

12:40 am-2:35 pm

2 stops43h 55m

Tamuning Guam Intl

Fri 12/5

4:50 pm-8:49 pm

2 stops45h 59m

$1,953

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Wed 10/1

6:55 pm-6:05 pm

1 stop30h 10m

Tamuning Guam Intl

Sun 10/12

7:10 am-11:56 am

2 stops21h 46m

$2,221

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Thu 7/3

1:40 pm-2:40 pm

1 stop32h 00m

$1,313

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sat 7/5

12:45 pm-3:15 pm

1 stop33h 30m

$1,396

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 8/11

8:55 am-3:15 pm

2 stops37h 20m

$1,401

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

Mon 7/14

8:57 am-6:05 pm

3 stops40h 08m

$1,609

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 June 12, 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 June 12, 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
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Hawaiian Airlines
7.9
Good
2,494 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines to fly from State of Washington to Guam one-way?

    One-way options have recently been found by users for as low as $1,313 on Hawaiian Airlines. Other airlines that offer cheap prices include Delta from $1,396 and United Airlines from $1,574 one-way.

  • 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.

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,245Average$2,154FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,542Average$1,642FlexibilityNo cancel feeOn-timeN/A

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