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Tamuning

$498+ Cheap flights from Seattle (SEA) to Tamuning (GUM)

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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GUM
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Tamuning Guam Intl are usually found in October or February, booked 7 days in advance, depart on a Monday or Tuesday and return on a Monday

Find flight deals from Seattle to Tamuning

Cheapest flights from Seattle to Tamuning
Explore the most affordable flight options available from Seattle to Tamuning. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Wed 12/1012:35 pmSEA - GUM
2 stops32h 40mMultiple Airlines
Wed 12/174:10 pmGUM - SEA
1 stop39h 35mMultiple Airlines
Deal found 10/25$1,301
This Trip.com deal was found by Cheapflights users on 10/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/271:10 pmSEA - GUM
1 stop32h 25mMultiple Airlines
Sun 11/92:40 amGUM - SEA
1 stop29h 15mMultiple Airlines
Deal found 10/26$1,338
This Delta deal was found by Cheapflights users on 10/27. 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 11/2511:15 amSEA - GUM
1 stop33h 20mDelta
Mon 12/11:00 amGUM - SEA
1 stop30h 20mDelta
Deal found 10/27$1,594
This Delta deal was found by Cheapflights users on 10/27. 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 11/2411:55 pmSEA - GUM
2 stops29h 10mDelta
Tue 12/21:00 amGUM - SEA
2 stops37h 36mDelta
Deal found 10/27$1,603
This Delta deal was found by Cheapflights users on 10/25. 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 11/2011:15 amSEA - GUM
1 stop17h 50mDelta
Thu 12/44:50 pmGUM - SEA
1 stop38h 30mDelta
Deal found 10/25$1,644
This Delta deal was found by Cheapflights users on 10/27. 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 11/2811:15 amSEA - GUM
1 stop17h 50mDelta
Thu 12/41:00 amGUM - SEA
1 stop30h 20mDelta
Deal found 10/27$1,694
This Delta deal was found by Cheapflights users on 10/27. 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 11/2811:55 pmSEA - GUM
2 stops29h 10mDelta
Fri 12/51:00 amGUM - SEA
2 stops37h 38mDelta
Deal found 10/27$1,703

Cheap flight deals from Seattle to Tamuning

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Tamuning (GUM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,301
(Kiwi.com)

One-way from

$498
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,571
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 Seattle/Tacoma Intl to Tamuning Guam Intl
Search Deals
One-way flight from Seattle/Tacoma Intl to Tamuning Guam Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($121 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Tamuning 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 October 27, 2025.
Use the filters below to find and compare flights from Seattle to Tamuning that are best for you.

Fly from

Seattle

Fly to

Tamuning

Route

Depart

Return

Price

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Mon 2/23

11:25 am-11:05 pm

1 stop17h 40m

Tamuning Guam Intl

Tue 3/3

1:00 am-1:20 pm

1 stop30h 20m

$1,544

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Mon 2/9

11:25 am-11:05 pm

1 stop17h 40m

Tamuning Guam Intl

Sun 2/22

1:00 am-1:20 pm

1 stop30h 20m

$1,544

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Mon 2/9

11:25 am-11:05 pm

1 stop17h 40m

Tamuning Guam Intl

Tue 2/24

1:00 am-1:20 pm

1 stop30h 20m

$1,544

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Wed 4/15

12:45 pm-3:15 pm

1 stop33h 30m

Tamuning Guam Intl

Mon 4/27

5:00 pm-2:00 pm

1 stop38h 00m

$1,544

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Wed 11/19

11:10 pm-1:20 am

2 stops56h 10m

$498

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sat 11/29

11:26 am-1:20 am

2 stops43h 54m

$499

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Fri 2/13

12:30 pm-2:35 pm

1 stop32h 05m

$1,120

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sat 4/4

1:30 pm-2:40 pm

1 stop32h 10m

$1,136

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Tue 11/11

11:15 am-11:05 pm

1 stop17h 50m

$1,396

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Compare providers for flights from Seattle to Tamuning

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Tamuning in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Tamuning flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Tamuning flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Tamuning flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Tamuning flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Tamuning flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Tamuning

Have a flexible travel schedule? Discover the best time to fly to Tamuning from Seattle 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 Seattle to Tamuning

How far ahead should I book a flight from Seattle to Tamuning?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Tamuning. Price data was last updated on October 24, 2025.

The best time to book flights from Seattle to Tamuning is 7 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Tamuning?

Currently, June is the cheapest month in which you can book a flight from Seattle to Tamuning (average of $326). Flying from Seattle to Tamuning in December is currently the most expensive (average of $1,597). 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 SEA to GUM?

Find hourly flight availability from Seattle to Tamuning. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 27, 2025.

It’s optimal to fly from Seattle to Tamuning at noon. By choosing this option you can save up to 6% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Tamuning

Get insights into the airlines that provide service to Tamuning. 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 Tamuning. Reviews last updated October 27, 2025.
Peruse reviews from past customers who have flown with Delta and United Airlines from Seattle to Tamuning to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,996 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,996 reviews
Delta
7.9
Good
7,996 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,997 reviews
Delta
7.9
Good
7,996 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Tamuning. 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 Seattle to Tamuning?

    There are many flights that can get you from Seattle to Tamuning in 17h 40m. Fly via Delta to get the fastest option. There are 5664 mi between Seattle and Tamuning.

  • What are the cheapest airlines flying from Seattle to Tamuning round-trip?

    Cheapflights users have booked flights from Seattle to Tamuning round-trip from $532. Another airline that can offer you cheap pricing is Delta. These flights start at 71% lower than the current average price 3 months from now.

  • Can I find deals for flights from Seattle to Tamuning that include hotel bookings?

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

  • How can I find direct flights from Seattle to Tamuning?

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

  • Can I find deals for business class flights from Seattle to Tamuning?

    Yes. Cheapflights offers flight deals from Seattle to Tamuning 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 Seattle to Tamuning?

    Currently, June is the cheapest month in which you can book a flight from Seattle to Tamuning (average of $326). Flying from Seattle to Tamuning in December is currently the most expensive (average of $1,597). 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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Alternative routes for Seattle to Tamuning

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Tamuning flights
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Top 2 airlines flying from Seattle to Tamuning

Discover the top 2 airlines that operate flights from Seattle to Tamuning. 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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$532Average$1,999FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,543Average$1,642FlexibilityNo cancel feeOn-timeN/A

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