HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Guam

$1,917+ Cheap flights from Dulles Intl (IAD) to Guam

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — GUM
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Guam with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,917
(United Airlines)

Popular in

August

Cheapest in

October

Average price

$2,179
Provider with most accurate pricing for Washington, D.C. (WAS)-Tamuning Guam Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Tamuning Guam Intl flights.
Search Deals
From Washington, D.C. Dulles Intl to Guam
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find 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 February 20, 2025.

This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2710:05 pmIAD - GUM
2 stops30h 10mUnited Airlines
Mon 5/57:00 amGUM - IAD
2 stops25h 52mUnited Airlines
Deal found 2/20$1,917
This Delta deal was found by Cheapflights users on 2/19. 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 3/1110:00 amIAD - GUM
2 stops38h 35mDelta
Tue 3/184:50 pmGUM - IAD
2 stops45h 41mDelta
Deal found 2/19$2,077

Find flights from Dulles Intl to Guam within your budget

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 February 20, 2025.

Fly from

Dulles Intl

Fly to

Guam

Route

Depart

Return

Price

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Sun 4/27

10:05 pm-6:15 pm

2 stops30h 10m

Tamuning Guam Intl

Mon 5/5

7:00 am-6:52 pm

2 stops25h 52m

$1,917

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Tue 3/11

10:00 am-2:35 pm

2 stops38h 35m

Tamuning Guam Intl

Tue 3/18

4:50 pm-12:31 am

2 stops45h 41m

$2,077

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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.

Travel insights for flights from Dulles Intl to Guam

Get recent, data-driven insights about flights from Dulles Intl to Guam including ideal travel times, pricing trends, and more.

Rainfall in Guam by month

Plan your trip to Guam by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Guam ranges from 2.6 - 14.4 inches per month. August is typically the wettest month, when rainfall can reach 14.4 in. March is typically the driest time to visit Guam when rainfall is around 2.6 in.

Temperature in Guam by month

Plan your trip to Guam by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Guam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

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 February 20, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Guam, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,220 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Guam (average of $1,977). Flying from Washington, D.C. Dulles Intl Airport to Guam in May is currently the most expensive (average of $2,214). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Guam

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Sydney flights
Reagan-National to Sydney flights
Baltimore to Sydney flights
Dulles Intl to Melbourne flights
Reagan-National to Melbourne flights
Baltimore to Melbourne flights
Dulles Intl to Brisbane flights
Dulles Intl to Auckland flights
Reagan-National to Brisbane flights
Reagan-National to Auckland flights
Baltimore to Brisbane flights
Baltimore to Auckland flights
Dulles Intl to Nadi flights
Reagan-National to Nadi flights
Dulles Intl to Tamuning flights
Baltimore to Nadi flights
Dulles Intl to Avalon flights
Dulles Intl to Papeete flights
Baltimore to Tamuning flights
Reagan-National to Papeete flights
Dulles Intl to Vaitape flights
Reagan-National to Tamuning flights
Baltimore to Papeete flights
Dulles Intl to Perth flights
Reagan-National to Vaitape flights
Baltimore to Avalon flights
Reagan-National to Perth flights
Baltimore to Perth flights
Dulles Intl to Wellington flights
Dulles Intl to Christchurch flights
Dulles Intl to Canberra flights
Dulles Intl to Queenstown flights
Baltimore to Canberra flights
Baltimore to Vaitape flights
Dulles Intl to Adelaide flights
Reagan-National to Wellington flights
Reagan-National to Canberra flights
Baltimore to Adelaide flights
Dulles Intl to Cairns flights
Reagan-National to Queenstown flights
Baltimore to Queenstown flights
Baltimore to Christchurch flights
Dulles Intl to Apia flights
Reagan-National to Apia flights
Reagan-National to Adelaide flights
Baltimore to Apia flights
Dulles Intl to Nuku‘alofa flights
Reagan-National to Cairns flights

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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,916Average$2,261FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.