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Tamuning

$528+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GUM
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Tamuning Guam Intl are usually found in March or October, booked 7 days in advance, depart on a Monday or Tuesday and return on a Monday

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 August 20, 2025.

Round-trip from

$1,193
(Kiwi.com)

One-way from

$528
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,904
From Seattle/Tacoma Intl to Tamuning Guam Intl
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One-way flight from Seattle/Tacoma Intl to Tamuning Guam Intl
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Highest demand for flights based on searches. 5% potential increase in price ($103 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 August 2025
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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 August 20, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Sun 9/212:50 pmSEA - GUM
1 stop30h 40mMultiple Airlines
Mon 9/292:25 amGUM - SEA
2 stops33h 41mMultiple Airlines
Deal found 8/20$1,193
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Sun 9/212:50 pmSEA - GUM
1 stop30h 40mMultiple Airlines
Sun 9/282:25 amGUM - SEA
1 stop29h 20mMultiple Airlines
Deal found 8/20$1,254
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Sun 10/192:55 pmSEA - GUM
1 stop30h 50mMultiple Airlines
Thu 10/232:25 amGUM - SEA
1 stop29h 10mMultiple Airlines
Deal found 8/19$1,263
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Thu 9/182:50 pmSEA - GUM
1 stop39h 20mMultiple Airlines
Wed 9/243:40 amGUM - SEA
1 stop28h 05mMultiple Airlines
Deal found 8/19$1,287
This Delta deal was found by Cheapflights users on 8/18. 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 11/1011:15 amSEA - GUM
1 stop33h 20mDelta
Tue 11/184:50 pmGUM - SEA
1 stop38h 30mDelta
Deal found 8/18$1,544
This Delta deal was found by Cheapflights users on 8/18. 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 11/105:45 amSEA - GUM
2 stops38h 50mDelta
Wed 11/194:50 pmGUM - SEA
1 stop38h 30mDelta
Deal found 8/18$1,549
This Delta deal was found by Cheapflights users on 8/18. 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 11/105:45 amSEA - GUM
2 stops38h 50mDelta
Mon 11/174:50 pmGUM - SEA
2 stops47h 24mDelta
Deal found 8/18$1,553

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 August 20, 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

Sun 9/21

2:50 pm-2:30 pm

1 stop30h 40m

Tamuning Guam Intl

Mon 9/29

2:25 am-7:06 pm

2 stops33h 41m

$1,193

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sun 9/21

2:50 pm-2:30 pm

1 stop30h 40m

Tamuning Guam Intl

Sun 9/28

2:25 am-2:45 pm

1 stop29h 20m

$1,254

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sun 10/19

2:55 pm-2:45 pm

1 stop30h 50m

Tamuning Guam Intl

Thu 10/23

2:25 am-2:35 pm

1 stop29h 10m

$1,263

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Thu 9/18

2:50 pm-11:10 pm

1 stop39h 20m

Tamuning Guam Intl

Wed 9/24

3:40 am-2:45 pm

1 stop28h 05m

$1,287

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Tue 11/11

11:15 am-2:35 pm

1 stop33h 20m

Tamuning Guam Intl

Tue 11/18

4:50 pm-1:20 pm

1 stop38h 30m

$1,544

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Thu 11/13

11:15 am-2:35 pm

1 stop33h 20m

Tamuning Guam Intl

Wed 11/19

4:50 pm-1:20 pm

1 stop38h 30m

$1,544

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Wed 11/12

11:15 am-2:35 pm

1 stop33h 20m

Tamuning Guam Intl

Tue 11/18

4:50 pm-1:20 pm

1 stop38h 30m

$1,544

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Mon 9/22

1:45 pm-2:00 am

2 stops43h 15m

$528

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Fri 9/5

10:00 am-3:20 pm

2 stops36h 20m

$608

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Fri 9/5

1:45 pm-2:40 pm

1 stop31h 55m

$990

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 11 results
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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 August 8, 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, January is the cheapest month in which you can book a flight from Seattle to Tamuning (average of $1,977). Flying from Seattle to Tamuning 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 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 August 20, 2025.

It’s optimal to fly from Seattle to Tamuning at noon. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight in the morning.

How much does it cost to fly round-trip from Seattle to Tamuning?

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 August 20, 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
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

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
8,928 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

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 Seattle to Tamuning. 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 flying from Seattle to Tamuning round-trip?

    Cheapflights users have booked flights from Seattle to Tamuning round-trip from $598. Another airline that can offer you cheap pricing is Delta. These flights start at 68% 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, January is the cheapest month in which you can book a flight from Seattle to Tamuning (average of $1,977). Flying from Seattle to Tamuning 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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Alternative routes for Seattle to Tamuning

See prices for flight routes from nearby airports that may be better suited for you.
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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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$598Average$2,013FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,542Average$1,642FlexibilityNo cancel feeOn-timeN/A

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