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Tamuning

$1,538+ Cheap flights from Dulles Intl (IAD) 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — GUM
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap flight deals from Dulles Intl to Tamuning

Cheapest flights from Dulles Intl to Tamuning
Explore the most affordable flight options available from Dulles Intl to Tamuning. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2026.

This United Airlines deal was found by Cheapflights users on 1/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:06 pm
IAD
-
GUM
2 stops51h 39m
United Airlines
Tue 9/87:10 am
GUM
-
IAD
2 stops32h 07m
United Airlines
Deal found 1/18$1,658
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:00 am
IAD
-
GUM
2 stops22h 05m
United Airlines
Wed 4/87:05 am
GUM
-
IAD
2 stops28h 20m
United Airlines
Deal found 1/19$1,919
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:05 am
IAD
-
GUM
2 stops26h 50m
Delta
Tue 5/123:00 am
GUM
-
IAD
2 stops44h 10m
Delta
Deal found 1/20$1,934
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:35 pm
IAD
-
GUM
1 stop25h 45m
United Airlines
Tue 10/277:25 am
GUM
-
IAD
2 stops22h 48m
United Airlines
Deal found 1/19$1,942
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/11:00 pm
IAD
-
GUM
2 stops36h 15m
Delta
Tue 9/155:00 pm
GUM
-
IAD
2 stops44h 51m
Delta
Deal found 1/19$1,984
This United Airlines deal was found by Cheapflights users on 1/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:50 pm
IAD
-
GUM
1 stop25h 30m
United Airlines
Tue 9/157:35 pm
GUM
-
IAD
1 stop34h 00m
United Airlines
Deal found 1/18$2,000
This United Airlines deal was found by Cheapflights users on 1/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:30 am
IAD
-
GUM
2 stops21h 35m
United Airlines
Tue 8/257:05 am
GUM
-
IAD
2 stops23h 08m
United Airlines
Deal found 1/18$2,019
This United Airlines deal was found by Cheapflights users on 1/17. 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.
Mon 6/226:20 am
IAD
-
GUM
2 stops32h 00m
United Airlines
Mon 6/297:05 am
GUM
-
IAD
2 stops23h 08m
United Airlines
Deal found 1/17$2,042
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:00 am
IAD
-
GUM
2 stops26h 05m
Delta
Mon 2/231:00 am
GUM
-
IAD
2 stops37h 55m
Delta
Deal found 1/20$2,079
This Delta deal was found by Cheapflights users on 1/18. 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.
Sun 2/17:00 am
IAD
-
GUM
2 stops25h 05m
Delta
Sat 2/71:00 am
GUM
-
IAD
2 stops38h 24m
Delta
Deal found 1/18$2,179
This Delta deal was found by Cheapflights users on 1/18. 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.
Sun 3/157:29 pm
IAD
-
GUM
2 stops37h 36m
Delta
Sun 3/295:00 pm
GUM
-
IAD
2 stops41h 46m
Delta
Deal found 1/18$2,187

Find flight deals from Dulles Intl to Tamuning

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$1,919
(United Airlines)

One-way from

$1,538
(Delta)

Popular in

April

Cheapest in

February

Average price

$2,197
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Tamuning Guam Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Tamuning Guam Intl flights.
Search Deals
From Washington, D.C. Dulles Intl to Tamuning Guam Intl
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Tamuning Guam Intl
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($477 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($104 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 Dulles Intl 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 20, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Tamuning that are best for you.

Fly from

Dulles Intl

Fly to

Tamuning

Route

Depart

Return

Price

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Wed 4/1

8:35 am-6:05 pm

1 stop19h 30m

Tamuning Guam Intl

Wed 4/8

7:05 am-3:46 pm

2 stops22h 41m

$1,919

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Mon 5/4

7:00 am-11:55 pm

2 stops26h 55m

Tamuning Guam Intl

Tue 5/12

3:00 am-11:29 pm

2 stops34h 29m

$1,934

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Mon 6/22

6:20 am-4:20 am

2 stops32h 00m

Tamuning Guam Intl

Mon 6/29

7:05 am-4:13 pm

2 stops23h 08m

$2,042

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Sun 2/1

7:00 am-11:05 pm

2 stops25h 05m

Tamuning Guam Intl

Sat 2/7

1:00 am-12:24 am

2 stops38h 24m

$2,179

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Sun 3/15

7:29 pm-11:05 pm

2 stops37h 36m

Tamuning Guam Intl

Sun 3/29

5:00 pm-8:46 pm

2 stops41h 46m

$2,187

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Sun 3/15

10:05 pm-6:50 pm

2 stops30h 45m

Tamuning Guam Intl

Sat 3/21

7:25 am-1:03 am

2 stops31h 38m

$2,279

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Sun 3/15

8:15 am-6:50 pm

1 stop20h 35m

Tamuning Guam Intl

Sun 3/29

7:30 pm-3:40 pm

1 stop34h 10m

$2,298

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Wed 1/28

12:40 pm-2:35 pm

2 stops34h 55m

$1,538

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Thu 1/29

7:00 am-2:35 pm

2 stops40h 35m

$1,538

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Sat 1/31

7:30 am-11:05 pm

2 stops24h 35m

$1,538

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 18 results
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Compare providers for flights from Dulles Intl 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 Dulles Intl to Tamuning in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 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 Washington, D.C. Dulles Intl Airport-Tamuning flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Tamuning flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Tamuning flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Tamuning flights, Cheapflights users trust Expedia the most. Expedia 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 Washington, D.C. Dulles Intl Airport-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 Dulles Intl to Tamuning

Have a flexible travel schedule? Discover the best time to fly to Tamuning 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.

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 20, 2026.
Get a feel of what it's like to fly with United Airlines from Washington, D.C. Dulles Intl Airport to Tamuning by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,180 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,180 reviews
United Airlines
7.4
Good
9,180 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Tamuning. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Tamuning from Washington, D.C. Dulles Intl?

    Most people fly into Tamuning Guam Intl (GUM) if they book a flight to Tamuning from Washington, D.C. Dulles Intl. On average, Guam Intl has 0 inbound flights from Washington, D.C. Dulles Intl per day from 1 airline. Tamuning Guam Intl is conveniently located just 1.1 mi from Tamuning’s city center.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Tamuning?

    Departing from Washington, D.C. Dulles Intl Airport to Tamuning will take you 19h 30m. There are 7899 mi between Washington, D.C. Dulles Intl Airport and Tamuning. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Tamuning round-trip?

    United Airlines, at $2,020, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Tamuning..

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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.

See more FAQs

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Alternative routes for Dulles Intl to Tamuning

See prices for flight routes from nearby airports that may be better suited for you.
Baltimore to Tamuning flights
Reagan-National to Tamuning flights

Top airline flying from Dulles Intl to Tamuning

Discover the top airline that operate flights from Dulles Intl 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 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$2,020Average$2,366FlexibilityNo cancel feeOn-time69%

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