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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
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,643
(Delta)

One-way from

$1,311
(Hawaiian Airlines)

Popular in

December

Cheapest in

March

Average price

$1,893
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 May 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 May 1, 2025.

This Delta deal was found by Cheapflights users on 4/30. 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 8/181:05 pmSEA - GUM
1 stop33h 10mDelta
Mon 8/255:00 pmGUM - SEA
1 stop38h 00mDelta
Deal found 4/30$1,643
This United Airlines deal was found by Cheapflights users on 4/29. 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 11/177:00 amGEG - GUM
2 stops38h 40mUnited Airlines
Wed 11/267:25 amGUM - GEG
2 stops23h 15mUnited Airlines
Deal found 4/29$1,838
This United Airlines deal was found by Cheapflights users on 4/30. 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 8/185:10 amSEA - GUM
2 stops19h 55mUnited Airlines
Wed 9/107:10 amGUM - SEA
3 stops30h 44mUnited Airlines
Deal found 4/30$1,917
This United Airlines deal was found by Cheapflights users on 4/29. 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 7/25:25 amPDX - GUM
2 stops19h 40mUnited Airlines
Wed 7/97:15 amGUM - PDX
2 stops22h 17mUnited Airlines
Deal found 4/29$1,917
This United deal was found by Cheapflights users on 4/30. 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.
Tue 7/15:10 amSEA - GUM
2 stops19h 55mMultiple Airlines
Thu 7/317:15 amGUM - SEA
1 stop15h 45mMultiple Airlines
Deal found 4/30$2,273
This Delta deal was found by Cheapflights users on 4/29. 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 7/112:52 amPDX - GUM
2 stops45h 23mDelta
Wed 7/95:00 pmGUM - PDX
2 stops45h 01mDelta
Deal found 4/29$2,333
This Hawaiian Airlines deal was found by Cheapflights users on 4/30. 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 4/30$2,724

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 May 1, 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

Mon 8/18

1:05 pm-3:15 pm

1 stop33h 10m

Tamuning Guam Intl

Mon 8/25

5:00 pm-2:00 pm

1 stop38h 00m

$1,643

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Mon 8/18

7:34 pm-6:05 pm

2 stops29h 31m

Tamuning Guam Intl

Mon 9/8

7:10 am-8:54 pm

3 stops30h 44m

$1,917

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 7/2

5:25 am-6:05 pm

2 stops19h 40m

Tamuning Guam Intl

Wed 7/9

7:15 am-12:32 pm

2 stops22h 17m

$1,917

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Tue 7/1

5:10 am-6:05 pm

2 stops19h 55m

Tamuning Guam Intl

Thu 7/31

7:15 am-6:00 am

1 stop15h 45m

$2,273

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Tue 7/1

12:52 am-3:15 pm

2 stops45h 23m

Tamuning Guam Intl

Wed 7/9

5:00 pm-9:01 pm

2 stops45h 01m

$2,333

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

Sun 6/29

12:55 pm-3:15 pm

1 stop33h 20m

$1,396

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 6/1

9:10 am-3:15 pm

2 stops37h 05m

$1,475

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Mon 5/26

5:40 pm-6:05 pm

2 stops31h 25m

$1,574

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sat 10/4

8:00 am-6:05 pm

1 stop17h 05m

$2,072

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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 May 1, 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 May 1, 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
7,934 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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
2,408 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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.

  • 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 $1,311 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,343Average$2,037FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,542Average$1,643FlexibilityNo cancel feeOn-timeN/A

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