What are the most popular routes from Washington, D.C. to Guam?

Most travelers choose Washington, D.C. Dulles Intl - Tamuning Guam Intl, Baltimore/Washington - Tamuning Guam Intl or Washington, D.C. Reagan-National - Tamuning Guam Intl when deciding on the best route from Washington, D.C. to Guam.

What is the cheapest month to fly from Washington, D.C. to Guam?

Our data shows that February tends to be the cheapest month to fly to Guam from Washington, D.C.. Users have commonly found prices around $2,257 for the month, but tickets can be as low as $1,214. Due to multiple factors, prepare for potentially higher prices in August.

What is the cheapest time of day to fly from WAS to GU?

When flying from Washington, D.C. to Guam, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Washington, D.C. to Guam that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Guam flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Guam?

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

Can I find deals for business class flights from Washington, D.C. to Guam?

Yes. Cheapflights offers flight deals from Washington, D.C. 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.

$2,074+ Flights from Washington, D.C. to Guam - Compare & Save Big

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Washington, D.C. 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 Washington, D.C. to Guam

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$1,942 (United Airlines)
One-way from	$1,612 (Delta)
Popular in	August
Cheapest in	February
Average price	$2,042

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. (WAS) to Guam

Search Deals

One-way flight from Washington, D.C. (WAS) to Guam

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($126 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($34 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Find flight deals from Washington, D.C. to Guam

Cheapest flights from Washington, D.C. to Guam
Explore the most affordable flight options available from Washington, D.C. to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Thu 9/256:35 amIAD - GUM

2 stops21h 30mUnited Airlines

Wed 10/17:05 pmGUM - IAD

1 stop34h 30mUnited Airlines

Deal found 4/29

$1,942

Wed 7/96:15 amBWI - GUM

2 stops21h 50mUnited Airlines

Wed 7/167:15 amGUM - BWI

2 stops30h 02mUnited Airlines

Deal found 4/29

$2,017

Wed 7/912:45 pmIAD - GUM

2 stops36h 30mDelta

Wed 7/165:00 pmGUM - IAD

2 stops50h 57mDelta

Deal found 4/29

$2,033

Wed 5/149:55 amBWI - GUM

2 stops39h 20mDelta

Tue 5/275:00 pmGUM - BWI

2 stops37h 23mDelta

Deal found 4/29

$2,098

Sat 8/27:00 amDCA - GUM

2 stops42h 45mUnited Airlines

Sat 8/97:15 amGUM - DCA

2 stops28h 12mUnited Airlines

Deal found 4/29

$2,138

Sun 6/86:10 amDCA - GUM

2 stops43h 05mDelta

Sun 6/155:00 pmGUM - DCA

2 stops44h 22mDelta

Deal found 4/29

$2,313

Best flights from Washington, D.C. to Guam
Discover carefully curated flight deals from Washington, D.C. to Guam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Thu 9/256:35 amIAD - GUM

2 stops21h 30mUnited Airlines

Wed 10/17:05 pmGUM - IAD

1 stop34h 30mUnited Airlines

Deal found 4/29

$1,942

Wed 7/912:45 pmIAD - GUM

2 stops36h 30mDelta

Wed 7/165:00 pmGUM - IAD

2 stops50h 57mDelta

Deal found 4/29

$2,033

Wed 7/96:15 amBWI - GUM

2 stops21h 50mUnited Airlines

Wed 7/167:15 amGUM - BWI

2 stops30h 02mUnited Airlines

Deal found 4/29

$2,017

Wed 5/149:55 amBWI - GUM

2 stops39h 20mDelta

Tue 5/275:00 pmGUM - BWI

2 stops37h 23mDelta

Deal found 4/29

$2,098

Sun 6/86:10 amDCA - GUM

2 stops43h 05mDelta

Sun 6/155:00 pmGUM - DCA

2 stops44h 22mDelta

Deal found 4/29

$2,313

Wed 5/287:00 amDCA - GUM

2 stops24h 45mUnited Airlines

Wed 6/47:15 amGUM - DCA

2 stops21h 50mUnited Airlines

Deal found 4/28

$2,320

Last-minute flights from Washington, D.C. to Guam
Discover last-minute flight deals from Washington, D.C. to Guam. Data last updated April 30, 2025 and is based on user searches.

Sun 5/45:32 pmIAD - GUM

2 stops31h 43mDelta

Fri 5/95:00 pmGUM - IAD

2 stops42h 34mDelta

Deal found 4/29

$2,778

Sun 5/44:45 pmBWI - GUM

2 stops32h 30mDelta

Fri 5/95:00 pmGUM - BWI

2 stops38h 38mDelta

Deal found 4/29

$2,798

Wed 5/149:55 amBWI - GUM

2 stops39h 20mDelta

Tue 5/275:00 pmGUM - BWI

2 stops37h 23mDelta

Deal found 4/29

$2,098

Wed 5/1412:10 pmDCA - GUM

2 stops37h 05mDelta

Sun 5/255:00 pmGUM - DCA

2 stops36h 59mDelta

Deal found 4/29

$2,378

Fri 5/167:45 amIAD - GUM

2 stops41h 30mDelta

Fri 5/235:00 pmGUM - IAD

2 stops43h 54mDelta

Deal found 4/29

$2,178

Sat 5/177:00 amDCA - GUM

2 stops31h 25mUnited Airlines

Sat 5/247:00 amGUM - DCA

2 stops22h 05mUnited Airlines

Deal found 4/29

$2,552

Sat 5/247:00 pmBWI - GUM

2 stops36h 45mUnited Airlines

Tue 5/277:00 amGUM - BWI

2 stops29h 54mUnited Airlines

Deal found 4/29

$2,238

Thu 5/298:15 amIAD - GUM

2 stops30h 05mUnited Airlines

Tue 6/37:15 amGUM - IAD

2 stops27h 49mUnited Airlines

Deal found 4/29

$2,317

One-way flights from Washington, D.C. to Guam
Search for one-way flight options from Washington, D.C. to Guam. Find affordable one-way fares based on user searches. Data last updated April 30, 2025.

Mon 6/239:40 amIAD - GUM

2 stops39h 35mDelta

Deal found 4/29

$1,612

Mon 6/233:59 pmDCA - GUM

2 stops33h 16mDelta

Deal found 4/28

$1,612

Mon 6/234:45 pmBWI - GUM

2 stops32h 30mDelta

Deal found 4/29

$1,622

Mon 6/2312:20 pmIAD - GUM

1 stop26h 00mUnited Airlines

Deal found 4/29

$1,724

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Guam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Thu 9/25

6:35 am-6:05 pm

2 stops21h 30m

Tamuning Guam Intl

Wed 10/1

7:05 pm-3:35 pm

1 stop34h 30m

$1,942

BaltimoreTamuning

BWI - GUM

BWIGUM

Baltimore/Washington

Wed 7/9

6:15 am-6:05 pm

2 stops21h 50m

Tamuning Guam Intl

Wed 7/16

7:15 am-11:17 pm

2 stops30h 02m

$2,017

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Wed 7/9

12:45 pm-3:15 pm

2 stops36h 30m

Tamuning Guam Intl

Wed 7/16

5:00 pm-5:57 am

2 stops50h 57m

$2,033

BaltimoreTamuning

BWI - GUM

BWIGUM

Baltimore/Washington

Wed 5/14

9:55 am-3:15 pm

2 stops39h 20m

Tamuning Guam Intl

Tue 5/27

5:00 pm-4:23 pm

2 stops37h 23m

$2,098

Washington, D.C.Tamuning

DCA - GUM

DCAGUM

Washington, D.C. Reagan-National

Sun 6/8

6:10 am-3:15 pm

2 stops43h 05m

Tamuning Guam Intl

Sun 6/15

5:00 pm-11:22 pm

2 stops44h 22m

$2,313

Washington, D.C.Tamuning

DCA - GUM

DCAGUM

Washington, D.C. Reagan-National

Tue 6/3

7:25 am-6:05 pm

2 stops20h 40m

Tamuning Guam Intl

Mon 6/23

7:15 am-6:55 pm

2 stops25h 40m

$2,357

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Mon 6/23

9:40 am-3:15 pm

2 stops39h 35m

$1,612

Washington, D.C.Tamuning

DCA - GUM

DCAGUM

Washington, D.C. Reagan-National

Mon 6/23

6:59 am-3:15 pm

2 stops42h 16m

$1,612

BaltimoreTamuning

BWI - GUM

BWIGUM

Baltimore/Washington

Mon 6/23

4:45 pm-3:15 pm

2 stops32h 30m

$1,622

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Mon 6/23

12:20 pm-4:20 am

1 stop26h 00m

$1,724

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Best time to book a flight from Washington, D.C. to Guam

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

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Guam (average of $1,977). Flying from Washington, D.C. 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.

Rainfall in Guam 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

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 a feel of what it's like to fly with Delta and United Airlines from Washington, D.C. to Guam by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,929 reviews

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

7,929 reviews

Delta

8.0

Very good

7,929 reviews

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

8,696 reviews

Delta

8.0

Very good

7,929 reviews

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

What are the most popular routes from Washington, D.C. to Guam?
Most travelers choose Washington, D.C. Dulles Intl - Tamuning Guam Intl, Baltimore/Washington - Tamuning Guam Intl or Washington, D.C. Reagan-National - Tamuning Guam Intl when deciding on the best route from Washington, D.C. to Guam.
Can I find deals for flights from Washington, D.C. to Guam that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Guam flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Guam?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Guam.
Can I find deals for business class flights from Washington, D.C. to Guam?
Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Guam?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Guam (average of $1,977). Flying from Washington, D.C. 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

Alternative routes for Washington, D.C. to Guam

Dulles Intl to Sydney flights

Reagan-National to Sydney flights

Reagan-National to Melbourne flights

Dulles Intl to Melbourne flights

Dulles Intl to Auckland flights

Dulles Intl to Brisbane flights

Reagan-National to Brisbane flights

Reagan-National to Auckland flights

Dulles Intl to Tamuning flights

Dulles Intl to Adelaide flights

Dulles Intl to Avalon flights

Reagan-National to Adelaide flights

Reagan-National to Papeete flights

Dulles Intl to Nadi flights

Dulles Intl to Papeete flights

Reagan-National to Nadi flights

Dulles Intl to Perth flights

Reagan-National to Perth flights

Dulles Intl to Vaitape flights

Reagan-National to Tamuning flights

Reagan-National to Vaitape flights

Dulles Intl to Wellington flights

Reagan-National to Wellington flights

Dulles Intl to Canberra flights

Reagan-National to Apia flights

Reagan-National to Dunedin flights

Dulles Intl to Apia flights

Dulles Intl to Dunedin flights

Reagan-National to Canberra flights

Dulles Intl to Christchurch flights

Dulles Intl to Cairns flights

Dulles Intl to I Fadang flights

Dulles Intl to Queenstown flights

Reagan-National to Christchurch flights

Reagan-National to Cairns flights

Reagan-National to Queenstown flights

Dulles Intl to Ballina flights

Dulles Intl to Hobart flights

Dulles Intl to Port Moresby flights

Dulles Intl to Suva flights

Reagan-National to Coolangatta flights

Reagan-National to Rarotonga flights

Top airline flying from Washington, D.C. to Guam

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,916	Average$2,293	FlexibilityNo cancel fee	On-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.

$1,612+ Cheap flights from Washington, D.C. (WAS) 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Guam with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Washington, D.C. to Guam

Keep the following information in mind while searching for Washington, D.C. to Guam flight deals. Data was last updated April 30, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Washington, D.C. to Guam

Cheapest flights from Washington, D.C. to GuamExplore the most affordable flight options available from Washington, D.C. to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Explore the most affordable flight options available from Washington, D.C. to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Guam that are best for you.

Best time to book a flight from Washington, D.C. to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from Washington, D.C. with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Guam

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

Rainfall in Guam by month

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

Temperature in Guam by month

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

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 April 30, 2025.

Get a feel of what it's like to fly with Delta and United Airlines from Washington, D.C. to Guam by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Guam. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the most popular routes from Washington, D.C. to Guam?

Can I find deals for flights from Washington, D.C. to Guam that include hotel bookings?

How can I find direct flights from Washington, D.C. to Guam?

Can I find deals for business class flights from Washington, D.C. to Guam?

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

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 Washington, D.C. to Guam

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Washington, D.C. to Guam

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Washington, D.C. to Guam
Explore the most affordable flight options available from Washington, D.C. to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.