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Tamuning

$1,296+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — GUM
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Cheap 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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,918
(United Airlines)

One-way from

$731
(Kiwi.com)

Popular in

April

Cheapest in

February

Average price

$1,967
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Tamuning Guam Intl flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Tamuning Guam Intl flights.
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From Washington, D.C. Dulles Intl to Tamuning Guam Intl
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One-way flight from Washington, D.C. Dulles Intl to Tamuning Guam Intl
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Highest demand for flights based on searches. 12% potential increase in price ($313 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($51 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 16, 2025.

This United Airlines deal was found by Cheapflights users on 10/15. 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 12/156:00 amIAD - GUM
2 stops21h 50mUnited Airlines
Tue 12/237:40 amGUM - IAD
2 stops26h 10mUnited Airlines
Deal found 10/15$2,018
This Delta deal was found by Cheapflights users on 10/15. 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.
Fri 11/146:03 amIAD - GUM
2 stops26h 02mDelta
Thu 11/201:00 amGUM - IAD
2 stops38h 16mDelta
Deal found 10/15$2,178
This United Airlines deal was found by Cheapflights users on 10/14. 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 12/710:10 pmIAD - GUM
2 stops29h 40mUnited Airlines
Thu 12/117:40 amGUM - IAD
2 stops28h 02mUnited Airlines
Deal found 10/14$2,228
This United Airlines deal was found by Cheapflights users on 10/16. 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 12/2110:05 pmIAD - GUM
2 stops29h 55mUnited Airlines
Fri 1/97:40 amGUM - IAD
2 stops20h 37mUnited Airlines
Deal found 10/16$2,238
This Delta deal was found by Cheapflights users on 10/14. 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 12/77:15 amIAD - GUM
2 stops24h 50mDelta
Wed 12/101:00 amGUM - IAD
2 stops35h 29mDelta
Deal found 10/14$2,328
This United Airlines deal was found by Cheapflights users on 10/16. 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 12/112:20 pmIAD - GUM
1 stop25h 00mUnited Airlines
Wed 12/317:40 amGUM - IAD
1 stop38h 43mUnited Airlines
Deal found 10/16$2,353
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Sat 11/16:00 amIAD - GUM
2 stops22h 50mUnited Airlines
Sat 11/87:40 amGUM - IAD
2 stops26h 14mUnited Airlines
Deal found 10/16$2,528
This Delta deal was found by Cheapflights users on 10/15. 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 12/157:15 amIAD - GUM
2 stops24h 50mDelta
Mon 12/221:00 amGUM - IAD
2 stops37h 57mDelta
Deal found 10/15$2,582

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 October 16, 2025.
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 1/28

8:15 am-7:05 pm

1 stop19h 50m

Tamuning Guam Intl

Wed 2/4

7:40 am-1:17 pm

2 stops20h 37m

$1,918

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Wed 1/28

1:00 pm-11:05 pm

2 stops43h 05m

Tamuning Guam Intl

Tue 2/3

1:00 am-11:35 pm

2 stops37h 35m

$1,933

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Thu 3/12

6:10 am-2:35 pm

2 stops42h 25m

Tamuning Guam Intl

Wed 3/18

1:00 am-9:11 am

2 stops46h 11m

$1,933

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Fri 1/30

6:03 am-7:05 pm

2 stops22h 02m

Tamuning Guam Intl

Mon 3/2

7:40 am-4:24 pm

2 stops23h 44m

$1,968

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Mon 12/15

6:00 am-6:50 pm

2 stops21h 50m

Tamuning Guam Intl

Tue 12/23

7:40 am-6:50 pm

2 stops26h 10m

$2,018

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Fri 1/16

7:00 am-11:05 pm

2 stops25h 05m

Tamuning Guam Intl

Thu 1/22

4:50 pm-9:13 pm

2 stops43h 23m

$2,033

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Fri 1/16

8:15 am-7:05 pm

1 stop19h 50m

Tamuning Guam Intl

Thu 1/22

7:20 pm-3:40 pm

1 stop35h 20m

$2,037

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Fri 10/31

12:27 pm-2:35 pm

2 stops36h 08m

$1,537

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Wed 1/14

3:00 pm-2:35 pm

2 stops32h 35m

$1,537

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Fri 12/5

5:59 pm-11:05 pm

2 stops38h 06m

$1,537

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Showing 1-10 of 15 results
1
2

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 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 FlightHub the most. FlightHub 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 October 16, 2025.
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
8,982 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,982 reviews
United Airlines
7.4
Good
8,982 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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 50m. 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.

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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.
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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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$2,020Average$2,357FlexibilityNo cancel feeOn-time69%

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