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Cheap flights from Washington to Guam from $515

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 Guam departing on 11/29. 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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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
12:20 am - 8:38 pmGUM-SEA
38h 18m2 stops
$1,143Multiple Airlines
Find Deal
Sat, Nov 29 - Mon, Dec 8
Multiple Airlines Logo
1:40 pm - 11:00 pmSEA-GUM
39h 20m1 stop
Multiple Airlines Logo
4:15 pm - 10:50 amGUM-SEA
36h 35m2 stops
$1,220Multiple Airlines
Find Deal
Sat, Nov 29 - Tue, Dec 9
Multiple Airlines Logo
1:45 pm - 3:00 pmSEA-GUM
31h 15m1 stop
Multiple Airlines Logo
2:20 am - 1:55 pmGUM-SEA
29h 35m1 stop
$1,245Multiple Airlines
Find Deal
Sat, Nov 15 - Wed, Nov 19
Multiple Airlines Logo
1:45 pm - 3:00 pmSEA-GUM
31h 15m1 stop
Multiple Airlines Logo
2:20 am - 10:40 amGUM-SEA
26h 20m2 stops
$1,260Multiple Airlines
Find Deal
Sat, Nov 15 - Wed, Nov 19
Delta Logo
11:15 am - 11:05 pmSEA-GUM
17h 50m1 stop
Delta Logo
1:00 am - 1:20 pmGUM-SEA
30h 20m1 stop
$1,594Delta
Find Deal
Thu, Nov 20 - Wed, Dec 3
Delta Logo
5:25 am - 2:35 pmSEA-GUM
39h 10m2 stops
Delta Logo
1:00 am - 1:20 pmGUM-SEA
30h 20m1 stop
$1,599Delta
Find Deal
Thu, Nov 20 - Mon, Dec 8
Delta Logo
5:25 am - 11:05 pmSEA-GUM
23h 40m2 stops
Delta Logo
1:00 am - 8:36 pmGUM-SEA
37h 36m2 stops
$1,603Delta
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Thu, Nov 20 - Wed, Dec 3
United Airlines Logo
5:35 am - 7:05 pmPDX-GUM
19h 30m2 stops
United Airlines Logo
7:40 am - 6:56 pmGUM-PDX
29h 16m2 stops
$1,818United Airlines
Find Deal
Tue, Jan 20 - Tue, Jan 27
United Airlines Logo
6:18 am - 7:05 pmSEA-GUM
18h 47m2 stops
United Airlines Logo
7:40 am - 9:55 amGUM-SEA
20h 15m2 stops
$1,868United Airlines
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Tue, Jan 13 - Wed, Jan 21
United Airlines Logo
6:03 am - 7:05 pmSEA-GUM
19h 02m2 stops
United Airlines Logo
7:20 am - 3:44 pmGUM-SEA
26h 24m2 stops
$1,888United Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 21

United Airlines flights from State of Washington to Guam

Our best United Airlines deals on State of Washington to Guam flight tickets
United Airlines
Jan 20
PDX5:35 amPortland
19h 30m
2 stops
GUM7:05 pmTamuning Guam Intl
Jan 27
GUM7:40 amTamuning Guam Intl
29h 16m
2 stops
PDX6:56 pmPortland
$1,818
Find similar
United Airlines
Jan 13
SEA6:18 amSeattle/Tacoma Intl
18h 47m
2 stops
GUM7:05 pmTamuning Guam Intl
Jan 21
GUM7:40 amTamuning Guam Intl
20h 15m
2 stops
SEA9:55 amSeattle/Tacoma Intl
$1,868
Find similar
United Airlines
Jan 14
SEA6:03 amSeattle/Tacoma Intl
19h 02m
2 stops
GUM7:05 pmTamuning Guam Intl
Jan 21
GUM7:20 amTamuning Guam Intl
26h 24m
2 stops
SEA3:44 pmSeattle/Tacoma Intl
$1,888
Find similar

Delta flights from State of Washington to Guam

Our best Delta deals on State of Washington to Guam flight tickets
Delta
Nov 20
SEA11:15 amSeattle/Tacoma Intl
17h 50m
1 stop
GUM11:05 pmTamuning Guam Intl
Dec 3
GUM1:00 amTamuning Guam Intl
30h 20m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$1,594
Find similar
Delta
Nov 20
SEA5:25 amSeattle/Tacoma Intl
39h 10m
2 stops
GUM2:35 pmTamuning Guam Intl
Dec 8
GUM1:00 amTamuning Guam Intl
30h 20m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$1,599
Find similar
Delta
Nov 20
SEA5:25 amSeattle/Tacoma Intl
23h 40m
2 stops
GUM11:05 pmTamuning Guam Intl
Dec 3
GUM1:00 amTamuning Guam Intl
37h 36m
2 stops
SEA8:36 pmSeattle/Tacoma Intl
$1,603
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of 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, momondo users made 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from Washington to Guam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sat 11/29

1:40 pm-3:00 pm

1 stop31h 20m

Tamuning Guam Intl

Mon 12/8

12:20 am-8:38 pm

2 stops38h 18m

$1,143

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sat 11/29

1:40 pm-11:00 pm

1 stop39h 20m

Tamuning Guam Intl

Tue 12/9

4:15 pm-10:50 am

2 stops36h 35m

$1,220

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sat 11/15

1:45 pm-3:00 pm

1 stop31h 15m

Tamuning Guam Intl

Wed 11/19

2:20 am-1:55 pm

1 stop29h 35m

$1,245

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Sat 11/15

1:45 pm-3:00 pm

1 stop31h 15m

Tamuning Guam Intl

Wed 11/19

2:20 am-10:40 am

2 stops26h 20m

$1,260

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Thu 11/20

11:15 am-11:05 pm

1 stop17h 50m

Tamuning Guam Intl

Wed 12/3

1:00 am-1:20 pm

1 stop30h 20m

$1,594

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Thu 11/20

5:25 am-2:35 pm

2 stops39h 10m

Tamuning Guam Intl

Mon 12/8

1:00 am-1:20 pm

1 stop30h 20m

$1,599

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Thu 11/20

5:25 am-11:05 pm

2 stops23h 40m

Tamuning Guam Intl

Wed 12/3

1:00 am-8:36 pm

2 stops37h 36m

$1,603

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Tue 1/20

5:35 am-7:05 pm

2 stops19h 30m

Tamuning Guam Intl

Tue 1/27

7:40 am-6:56 pm

2 stops29h 16m

$1,818

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Tue 1/13

6:18 am-7:05 pm

2 stops18h 47m

Tamuning Guam Intl

Wed 1/21

7:40 am-9:55 am

2 stops20h 15m

$1,868

SeattleTamuning

SEA - GUM

SEAGUM

Seattle/Tacoma Intl

Wed 1/14

6:03 am-7:05 pm

2 stops19h 02m

Tamuning Guam Intl

Wed 1/21

7:20 am-3:44 pm

2 stops26h 24m

$1,888

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 Guam from

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

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 Guam?

If you aren’t able to travel during the month of October, then book flights to Guam from State of Washington during February instead. Flights to Guam in February, while not as cheap as those in October, still average around $1,617.

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

The cheapest day to depart from State of Washington to Guam is on a Monday when prices can be found for as low as $1,742. Flights from State of Washington to Guam on a Sunday will generally be more expensive and average around $2,305. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Flying to Guam from State of Washington at noon is the least expensive time of day to depart. momondo users have found prices as low as $1,776 when looking at flights departing at noon. In contrast, the most expensive time of day to depart to Guam is in the morning when prices are around $1,903.

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

You are more likely to see cheaper flights to Guam from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Guam for around $1,839 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Guam from State of Washington for as low as $1,294 on momondo.

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

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

Cheap State of Washington to Guam flight deals and tips

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

Direct flights

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

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

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

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

    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 Guam.

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

    The necessary travel and health documents for your Guam 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 Guam

Compare and see reviews for airlines that fly from State of Washington to Guam with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $483Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
DeltaPriceFrom $1,543Free CancellationRating
7.9
8,001 reviews
Search Delta flights

Why use momondo?

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

Finding the right flight to Guam from Washington is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Guam quick and easy, saving you time and money.

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

Yes. All flights to Guam from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Washington and Guam by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Washington to Guam flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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