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Cheap flights from Washington to Tamuning from $643

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Tamuning departing on 2/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Washington to Tamuning

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:40 pm - 3:00 pmSEA-GUM
31h 20m1 stop
Multiple Airlines Logo
2:45 am - 6:48 pmGUM-SEA
34h 03m2 stops
$1,415Multiple Airlines
Find Deal
Sun, Dec 7 - Sat, Dec 13
Multiple Airlines Logo
7:00 am - 3:15 pmSEA-GUM
38h 15m2 stops
Multiple Airlines Logo
4:10 pm - 1:45 pmGUM-SEA
39h 35m1 stop
$1,519Multiple Airlines
Find Deal
Sun, Dec 7 - Sun, Dec 14
Delta Logo
11:25 am - 11:05 pmSEA-GUM
17h 40m1 stop
Delta Logo
1:00 am - 1:20 pmGUM-SEA
30h 20m1 stop
$1,544Delta
Find Deal
Mon, Feb 9 - Tue, Feb 24
Delta Logo
11:25 am - 11:05 pmSEA-GUM
17h 40m1 stop
Delta Logo
1:00 am - 8:46 pmGUM-SEA
37h 46m2 stops
$1,548Delta
Find Deal
Mon, Feb 9 - Sun, Feb 22
Delta Logo
5:00 am - 11:05 pmSEA-GUM
24h 05m2 stops
Delta Logo
4:50 pm - 8:46 pmGUM-SEA
45h 56m2 stops
$1,553Delta
Find Deal
Mon, Feb 9 - Wed, Feb 25
Delta Logo
7:00 pm - 11:05 pmSEA-GUM
34h 05m2 stops
Delta Logo
4:50 pm - 1:20 pmGUM-SEA
38h 30m1 stop
$1,558Delta
Find Deal
Sun, Feb 1 - Mon, Feb 23
Multiple Airlines Logo
1:30 pm - 2:40 pmSEA-GUM
32h 10m1 stop
Multiple Airlines Logo
4:40 pm - 11:05 amGUM-SEA
35h 25m1 stop
$1,691Multiple Airlines
Find Deal
Sat, Apr 18 - Thu, Apr 23
United Airlines Logo
7:37 pm - 6:05 pmSEA-GUM
29h 28m2 stops
United Airlines Logo
7:05 am - 11:36 pmGUM-SEA
33h 31m3 stops
$1,818United Airlines
Find Deal
Wed, Apr 15 - Mon, Apr 27
United Airlines Logo
7:49 pm - 7:05 pmPDX-GUM
29h 16m2 stops
United Airlines Logo
7:25 am - 6:45 pmGUM-PDX
28h 20m2 stops
$1,818United Airlines
Find Deal
Sun, Mar 1 - Thu, Mar 12
United Airlines Logo
7:30 pm - 7:05 pmSEA-GUM
29h 35m2 stops
United Airlines Logo
7:30 pm - 11:47 pmGUM-SEA
45h 17m2 stops
$1,842United Airlines
Find Deal
Sun, Feb 1 - Sun, May 3

Delta flights from State of Washington to Tamuning

Our best Delta deals on State of Washington to Tamuning flight tickets
Delta
Feb 9
SEA11:25 amSeattle/Tacoma Intl
17h 40m
1 stop
GUM11:05 pmTamuning Guam Intl
Feb 25
GUM4:50 pmTamuning Guam Intl
38h 30m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$1,544
Find similar
Delta
Feb 9
SEA11:25 amSeattle/Tacoma Intl
17h 40m
1 stop
GUM11:05 pmTamuning Guam Intl
Feb 23
GUM4:50 pmTamuning Guam Intl
43h 39m
2 stops
SEA6:29 pmSeattle/Tacoma Intl
$1,548
Find similar
Delta
Feb 9
SEA5:00 amSeattle/Tacoma Intl
24h 05m
2 stops
GUM11:05 pmTamuning Guam Intl
Feb 25
GUM4:50 pmTamuning Guam Intl
45h 56m
2 stops
SEA8:46 pmSeattle/Tacoma Intl
$1,553
Find similar

United Airlines flights from State of Washington to Tamuning

Our best United Airlines deals on State of Washington to Tamuning flight tickets
United Airlines
Apr 15
SEA7:37 pmSeattle/Tacoma Intl
29h 28m
2 stops
GUM6:05 pmTamuning Guam Intl
Apr 27
GUM7:05 amTamuning Guam Intl
33h 31m
3 stops
SEA11:36 pmSeattle/Tacoma Intl
$1,818
Find similar
United Airlines
Feb 1
SEA7:30 pmSeattle/Tacoma Intl
29h 35m
2 stops
GUM7:05 pmTamuning Guam Intl
May 3
GUM7:30 pmTamuning Guam Intl
45h 17m
2 stops
SEA11:47 pmSeattle/Tacoma Intl
$1,842
Find similar
United Airlines
Feb 9
SEA6:03 amSeattle/Tacoma Intl
19h 02m
2 stops
GUM7:05 pmTamuning Guam Intl
Feb 23
GUM12:30 pmTamuning Guam Intl
26h 31m
3 stops
SEA9:01 pmSeattle/Tacoma Intl
$1,845
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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, momondo users made 832,500 searches. Data last updated November 10, 2025.
Use the filters below to find and compare flights from Washington to Tamuning that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sun 12/7

1:40 pm-3:00 pm

1 stop31h 20m

Tamuning Guam Intl

Sat 12/13

2:45 am-6:48 pm

2 stops34h 03m

$1,415

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sun 12/7

7:00 am-3:15 pm

2 stops38h 15m

Tamuning Guam Intl

Sun 12/14

4:10 pm-1:45 pm

1 stop39h 35m

$1,519

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

Mon 2/9

11:25 am-11:05 pm

1 stop17h 40m

Tamuning Guam Intl

Sun 2/22

1:00 am-8:46 pm

2 stops37h 46m

$1,548

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Mon 2/9

5:00 am-11:05 pm

2 stops24h 05m

Tamuning Guam Intl

Wed 2/25

4:50 pm-8:46 pm

2 stops45h 56m

$1,553

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sun 2/1

7:00 pm-11:05 pm

2 stops34h 05m

Tamuning Guam Intl

Mon 2/23

4:50 pm-1:20 pm

1 stop38h 30m

$1,558

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sat 4/18

1:30 pm-2:40 pm

1 stop32h 10m

Tamuning Guam Intl

Thu 4/23

4:40 pm-11:05 am

1 stop35h 25m

$1,691

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Wed 4/15

7:37 pm-6:05 pm

2 stops29h 28m

Tamuning Guam Intl

Mon 4/27

7:05 am-11:36 pm

3 stops33h 31m

$1,818

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 3/1

7:49 pm-7:05 pm

2 stops29h 16m

Tamuning Guam Intl

Thu 3/12

7:25 am-6:45 pm

2 stops28h 20m

$1,818

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sun 2/1

7:30 pm-7:05 pm

2 stops29h 35m

Tamuning Guam Intl

Sun 5/3

7:30 pm-11:47 pm

2 stops45h 17m

$1,842

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Tamuning from

How to get the cheapest flight ticket from State of Washington to Tamuning

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Tamuning?

The month of October is, on average, the cheapest month to fly to Tamuning from State of Washington, with most prices found around $1,548. If you aren’t able to travel during the month of October, then book flights to Tamuning from State of Washington during February instead. Flights to Tamuning in February, while not as cheap as those in October, still average around $1,642.

What is the cheapest day to depart on your flight to Tamuning?

The cheapest day to depart from State of Washington to Tamuning is on a Monday. Travelers who choose to depart for Tamuning on a Monday will often find tickets for as low as $1,742. The most expensive day to fly to Tamuning is Sunday, with ticket prices averaging around $2,305.

What is the cheapest time of day to depart on your flight to Tamuning?

Our most recent data shows that the best time of day to fly to Tamuning is at noon. Flights from State of Washington to Tamuning during this time can be as low as $1,776. Flights in the morning are often more expensive with an average ticket price of $1,903.

How far in advance should I book a flight to Tamuning?

You are more likely to see cheaper flights to Tamuning from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Tamuning for around $1,851 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Tamuning from State of Washington for as low as $1,294 on momondo.

Can stopping save me money on State of Washington to Tamuning flights?

You could potentially save up to 40% on your flight if you consider stops on a State of Washington to Tamuning flight.

Cheap State of Washington to Tamuning flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Tamuning

Direct flights

None
There are no direct flights from State of Washington to Tamuning. There are no popular flight routes from State of Washington to Tamuning.
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  • When did momondo last update prices for flights from Washington to Tamuning Guam Intl Airport?

    Prices for flights from Washington to Tamuning Guam Intl Airport were last updated today.

  • How many operators does momondo search for flights from Washington to Tamuning Guam Intl Airport?

  • How old do you have to be to fly from Washington to Tamuning Guam Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to Tamuning Guam Intl Airport.

  • What documentation or ID do you need to fly to Tamuning Guam Intl Airport?

    The necessary travel and health documents for your Tamuning Guam Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Tamuning

Compare and see reviews for airlines that fly from State of Washington to Tamuning with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $483Free CancellationRating
7.4
9,012 reviews
Search United Airlines flights
DeltaPriceFrom $1,543Free CancellationRating
7.9
8,004 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Tamuning?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington to Tamuning. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington to Tamuning with flexible booking policies on momondo?

momondo does allow users to show only those flights to Tamuning from Washington which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington to Tamuning?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Tamuning.

I’m not ready to book a flight from Washington to Tamuning right now. Can momondo alert me if prices change?

Price alerts on flights to Tamuning from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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