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$1,538+ Cheap flights from Dulles Intl (IAD) to Guam

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — GUM
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Cheap flight deals from Dulles Intl to Guam

Cheapest flights from Dulles Intl to Guam
Explore the most affordable flight options available from Dulles Intl to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 27, 2026.

This Priceline deal was found by Cheapflights users on 7/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:03 am
IAD
-
GUM
2 stops39h 32m
Multiple Airlines
Wed 9/164:35 pm
GUM
-
IAD
2 stops45h 24m
Multiple Airlines
Deal found 7/27$1,830
This Delta deal was found by Cheapflights users on 7/24. 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.
Wed 12/27:30 am
IAD
-
GUM
2 stops40h 05m
Delta
Tue 12/84:50 pm
GUM
-
IAD
2 stops38h 40m
Delta
Deal found 7/24$1,934
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:30 am
IAD
-
GUM
2 stops21h 30m
United Airlines
Tue 12/87:55 pm
GUM
-
IAD
1 stop34h 45m
United Airlines
Deal found 7/24$1,943
This United Airlines deal was found by Cheapflights users on 7/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:35 am
IAD
-
GUM
2 stops21h 30m
United Airlines
Fri 10/237:10 am
GUM
-
IAD
2 stops23h 16m
United Airlines
Deal found 7/26$1,969
This Priceline deal was found by Cheapflights users on 7/24. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:00 am
IAD
-
GUM
2 stops41h 35m
Multiple Airlines
Mon 9/144:35 pm
GUM
-
IAD
2 stops51h 05m
Multiple Airlines
Deal found 7/24$2,005
This Delta deal was found by Cheapflights users on 7/23. 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 9/176:10 am
IAD
-
GUM
2 stops27h 45m
Delta
Tue 9/292:00 am
GUM
-
IAD
2 stops36h 41m
Delta
Deal found 7/23$2,079
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am
IAD
-
GUM
2 stops27h 55m
Delta
Tue 9/155:20 pm
GUM
-
IAD
2 stops43h 36m
Delta
Deal found 7/26$2,139
This Delta deal was found by Cheapflights users on 7/23. 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 8/1611:44 am
IAD
-
GUM
2 stops46h 11m
Delta
Sat 9/195:20 pm
GUM
-
IAD
2 stops44h 23m
Delta
Deal found 7/23$2,199
This United Airlines deal was found by Cheapflights users on 7/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:13 pm
IAD
-
GUM
2 stops29h 52m
United Airlines
Thu 10/17:10 am
GUM
-
IAD
2 stops31h 56m
United Airlines
Deal found 7/26$2,229

Find flight deals from Dulles Intl to Guam

Keep the following information in mind while searching for Dulles Intl to Guam flight deals. Data was last updated July 27, 2026.

Round-trip from

$1,830
(Priceline)

One-way from

$1,538
(Delta)

Popular in

March

Cheapest in

February
From Washington, D.C. Dulles Intl to Guam
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Guam
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($257 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($111 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated July 27, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Guam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Thu 9/17

6:10 am-11:55 pm

2 stops27h 45m

Tamuning Guam Intl

Tue 9/29

2:00 am-12:41 am

2 stops36h 41m

$2,079

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Tue 9/1

6:00 am-11:55 pm

2 stops27h 55m

Tamuning Guam Intl

Tue 9/15

5:20 pm-10:56 pm

2 stops43h 36m

$2,139

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Wed 10/14

12:35 pm-4:20 am

1 stop25h 45m

Tamuning Guam Intl

Fri 10/23

7:35 pm-3:35 pm

1 stop34h 00m

$2,152
Quickest round-trip

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Sun 9/27

10:10 pm-6:05 pm

2 stops29h 55m

Tamuning Guam Intl

Thu 10/1

7:10 am-6:57 pm

2 stops25h 47m

$2,229

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Thu 9/17

12:35 pm-4:20 am

1 stop25h 45m

Tamuning Guam Intl

Wed 9/30

7:35 pm-3:35 pm

1 stop34h 00m

$2,258

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Fri 8/21

3:03 pm-3:35 pm

2 stops34h 32m

Tamuning Guam Intl

Fri 8/28

5:20 pm-12:34 am

2 stops45h 14m

$2,299
Cheapest one-way

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Sat 10/10

6:12 pm-3:35 pm

2 stops31h 23m

$1,538

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Sun 8/23

6:00 am-11:55 pm

2 stops27h 55m

$1,538

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Wed 9/30

6:10 am-11:55 pm

2 stops27h 45m

$1,538
Quickest one-way

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Sat 10/10

8:30 am-6:05 pm

1 stop19h 35m

$1,762

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Best time to book a flight from Dulles Intl to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Guam

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Guam?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Guam (average of $1,933). Flying from Washington, D.C. Dulles Intl Airport to Guam in December is currently the most expensive (average of $2,955). 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 Guam

Get insights into the airlines that provide service to Guam. 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 Guam. Reviews last updated July 27, 2026.
Peruse reviews from past customers who have flown with United Airlines from Washington, D.C. Dulles Intl Airport to Guam 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.
United Airlines
7.4
Good
10,041 reviews

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
10,041 reviews
United Airlines
7.4
Good
10,041 reviews

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Guam. 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 Washington, D.C. Dulles Intl Airport to Guam?

    A quick flight from Washington, D.C. Dulles Intl Airport to Guam can take about 27h 45m. Delta provides one of the quickest options available for as low as $2,079. There are 7899 mi between Washington, D.C. Dulles Intl Airport and Guam.

  • Can I find deals for flights from Dulles Intl to Guam that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Guam flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Guam?

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

  • Can I find deals for business class flights from Dulles Intl to Guam?

    Yes. Cheapflights offers flight deals from Dulles Intl to Guam 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 Washington, D.C. Dulles Intl Airport to Guam?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Guam (average of $1,933). Flying from Washington, D.C. Dulles Intl Airport to Guam in December is currently the most expensive (average of $2,955). 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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Top airline flying from Dulles Intl to Guam

Discover the top airline that operate flights from Dulles Intl to Guam. 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 July 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$2,044Average$2,278FlexibilityNo cancel feeOn-time69%

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