HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Tamuning

$689+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GUM
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Tamuning with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 January 26, 2026.

This Expedia deal was found by Cheapflights users on 1/24. 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.
Tue 9/291:30 pm
SEA
-
GUM
1 stop32h 10m
Multiple Airlines
Mon 10/54:40 pm
GUM
-
SEA
1 stop35h 00m
Multiple Airlines
Deal found 1/24$1,391
This Delta deal was found by Cheapflights users on 1/24. 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 4/131:00 pm
SEA
-
GUM
1 stop33h 15m
Delta
Sun 4/195:00 pm
GUM
-
SEA
1 stop37h 07m
Delta
Deal found 1/24$1,545
This Delta deal was found by Cheapflights users on 1/24. 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.
Sun 4/1211:59 pm
SEA
-
GUM
2 stops46h 16m
Delta
Sun 4/195:00 pm
GUM
-
SEA
1 stop37h 07m
Delta
Deal found 1/24$1,549
This Delta deal was found by Cheapflights users on 1/24. 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.
Sun 4/1211:59 pm
SEA
-
GUM
2 stops30h 56m
Delta
Mon 4/205:00 pm
GUM
-
SEA
2 stops42h 30m
Delta
Deal found 1/24$1,554
This Delta deal was found by Cheapflights users on 1/24. 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 2/2611:25 am
SEA
-
GUM
1 stop33h 10m
Delta
Sun 3/84:50 pm
GUM
-
SEA
1 stop38h 30m
Delta
Deal found 1/24$1,595
This Delta deal was found by Cheapflights users on 1/24. 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 2/265:30 am
SEA
-
GUM
2 stops23h 35m
Delta
Sun 3/81:00 am
GUM
-
SEA
1 stop30h 20m
Delta
Deal found 1/24$1,599
This Delta deal was found by Cheapflights users on 1/24. 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.
Sun 3/11:38 pm
SEA
-
GUM
2 stops39h 27m
Delta
Sun 3/81:00 am
GUM
-
SEA
1 stop30h 20m
Delta
Deal found 1/24$1,609
This Delta deal was found by Cheapflights users on 1/24. 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.
Sun 3/14:40 pm
SEA
-
GUM
2 stops36h 25m
Delta
Mon 3/91:00 am
GUM
-
SEA
2 stops34h 28m
Delta
Deal found 1/24$1,613
This Delta deal was found by Cheapflights users on 1/24. 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 2/243:30 pm
SEA
-
GUM
2 stops37h 35m
Delta
Wed 3/44:50 pm
GUM
-
SEA
2 stops45h 56m
Delta
Deal found 1/24$1,617

Find 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,360
(Kiwi.com)

One-way from

$689
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,594
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 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. 5% potential increase in price ($116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($67 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 26, 2026.
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

Sun 4/12

11:59 pm-11:55 pm

2 stops30h 56m

Tamuning Guam Intl

Tue 4/21

3:00 am-1:07 pm

1 stop27h 07m

$1,549

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Thu 2/26

11:25 am-11:05 pm

1 stop17h 40m

Tamuning Guam Intl

Mon 3/9

1:00 am-2:20 pm

1 stop30h 20m

$1,595

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Tue 3/3

11:30 am-2:35 pm

1 stop33h 05m

Tamuning Guam Intl

Tue 3/10

4:50 pm-2:20 pm

1 stop38h 30m

$1,595

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Wed 2/25

11:25 am-2:35 pm

1 stop33h 10m

Tamuning Guam Intl

Tue 3/3

1:00 am-1:20 pm

1 stop30h 20m

$1,595

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Tue 2/24

11:25 am-11:05 pm

1 stop17h 40m

Tamuning Guam Intl

Tue 3/3

1:00 am-1:20 pm

1 stop30h 20m

$1,595

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Thu 2/26

11:25 am-11:05 pm

1 stop17h 40m

Tamuning Guam Intl

Wed 3/4

1:00 am-1:20 pm

1 stop30h 20m

$1,595

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Mon 2/23

11:25 am-11:05 pm

1 stop17h 40m

Tamuning Guam Intl

Sun 3/1

1:00 am-1:20 pm

1 stop30h 20m

$1,595

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Thu 4/16

1:00 pm-11:55 pm

1 stop17h 55m

Tamuning Guam Intl

Fri 4/24

5:00 pm-1:07 pm

1 stop37h 07m

$1,595

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sat 4/11

1:00 pm-3:15 pm

1 stop33h 15m

Tamuning Guam Intl

Mon 4/20

3:00 am-1:07 pm

1 stop27h 07m

$1,595

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Mon 2/9

11:25 am-2:35 pm

1 stop33h 10m

Tamuning Guam Intl

Sun 2/22

1:00 am-1:20 pm

1 stop30h 20m

$1,595

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/23

Showing 1-10 of 18 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Tamuning flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 January 23, 2026.

The best time to book flights from Seattle to Tamuning is 17 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 $324). Flying from Seattle to Tamuning 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.

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 January 26, 2026.
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
8,111 reviews

Overall

7.9

Boarding

8.1

Food

7.2

Entertainment

7.8

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,111 reviews
Delta
7.9
Good
8,111 reviews

Overall

7.9

Boarding

8.1

Food

7.2

Entertainment

7.8

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,199 reviews
Delta
7.9
Good
8,111 reviews

Overall

7.9

Boarding

8.1

Food

7.2

Entertainment

7.8

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 30h 56m. 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 $467. Another airline that can offer you cheap pricing is Delta. These flights start at 74% 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 $324). Flying from Seattle to Tamuning 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
Spokane to Tamuning flights
Pasco to Tamuning flights

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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$467Average$1,988FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,543Average$1,594FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.