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

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

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.

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).

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Guam?

February is one of the best times of the year to fly to Guam from Washington, D.C. Reagan-National Airport. Prices for February average $2,249 per person but you can even find prices for as low as $1,214. The most expensive prices can be found in the month of August. Opting for a February flight can save you 16% on your journey compared to booking in August

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to Guam as you normally would.

Can I find deals for flights from Reagan-National to Guam that include hotel bookings?

Yes. In addition to deals on Reagan-National to Guam flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Reagan-National to Guam?

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

Can I find deals for business class flights from Reagan-National to Guam?

Yes. Cheapflights offers flight deals from Reagan-National 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.

$1,538+ Flights from Washington, D.C. Reagan-National Airport to Guam

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Cheap flight deals from Reagan-National to Guam

Round-trip from	$1,917 (United Airlines)
One-way from	$1,538 (Delta)
Popular in	August
Cheapest in	February
Average price	$2,017

From Washington, D.C. Reagan-National to Guam

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One-way flight from Washington, D.C. Reagan-National to Guam

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Highest demand for flights based on searches. 5% potential increase in price ($134 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($35 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Cheapest flights from Reagan-National to Guam
Explore the most affordable flight options available from Reagan-National to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2025.

Mon 10/206:00 amDCA - GUM

2 stops22h 05mUnited Airlines

Mon 10/277:25 amGUM - DCA

2 stops30h 19mUnited Airlines

Deal found 7/8

$1,917

Mon 10/136:10 amDCA - GUM

2 stops28h 00mDelta

Tue 10/211:55 amGUM - DCA

2 stops28h 37mDelta

Deal found 7/9

$1,933

Best flights from Reagan-National to Guam
Discover carefully curated flight deals from Reagan-National to Guam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 11, 2025.

Mon 10/206:00 amDCA - GUM

2 stops22h 05mUnited Airlines

Thu 10/307:25 amGUM - DCA

2 stops28h 44mUnited Airlines

Deal found 7/8

$1,917

Mon 10/136:10 amDCA - GUM

2 stops28h 00mDelta

Tue 10/211:55 amGUM - DCA

2 stops28h 37mDelta

Deal found 7/9

$1,933

Last-minute flights from Reagan-National to Guam
Discover last-minute flight deals from Reagan-National to Guam. Data last updated July 11, 2025 and is based on user searches.

Tue 8/56:59 amDCA - GUM

2 stops27h 11mDelta

Mon 8/111:55 amGUM - DCA

2 stops30h 57mDelta

Deal found 7/7

$2,198

Tue 8/56:25 amDCA - GUM

2 stops21h 40mUnited Airlines

Tue 8/127:15 amGUM - DCA

3 stops29h 27mUnited Airlines

Deal found 7/7

$2,527

One-way flights from Reagan-National to Guam
Search for one-way flight options from Reagan-National to Guam. Find affordable one-way fares based on user searches. Data last updated July 11, 2025.

Wed 8/278:45 pmDCA - GUM

2 stops37h 25mDelta

Deal found 7/10

$1,538

Fri 7/256:25 amDCA - GUM

2 stops21h 40mUnited Airlines

Deal found 7/10

$1,761

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Tamuning

DCA - GUM

DCAGUM

Washington, D.C. Reagan-National

Mon 10/20

6:00 am-6:05 pm

2 stops22h 05m

Tamuning Guam Intl

Thu 10/30

7:25 am-10:09 pm

2 stops28h 44m

$1,917

Washington, D.C.Tamuning

DCA - GUM

DCAGUM

Washington, D.C. Reagan-National

Mon 10/13

6:10 am-12:10 am

2 stops28h 00m

Tamuning Guam Intl

Tue 10/21

1:55 am-4:32 pm

2 stops28h 37m

$1,933

Washington, D.C.Tamuning

DCA - GUM

DCAGUM

Washington, D.C. Reagan-National

Wed 8/27

8:45 pm-12:10 am

2 stops37h 25m

$1,538

Washington, D.C.Tamuning

DCA - GUM

DCAGUM

Washington, D.C. Reagan-National

Fri 7/25

6:25 am-6:05 pm

2 stops21h 40m

$1,761

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

Best time to book a flight from Reagan-National to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from Reagan-National 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. Reagan-National Airport to Guam

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Guam

Read through reviews of airlines operating flights from Washington, D.C. Reagan-National Airport 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

7,952 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,952 reviews

Delta

8.0

Very good

7,952 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,846 reviews

Delta

8.0

Very good

7,952 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Can I find deals for flights from Reagan-National to Guam that include hotel bookings?
Yes. In addition to deals on Reagan-National to Guam flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to Guam?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Guam.
Can I find deals for business class flights from Reagan-National to Guam?
Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to Guam?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Guam (average of $1,977). Flying from Washington, D.C. Reagan-National 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

Alternative routes for Reagan-National to Guam

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Top airline flying from Reagan-National to Guam

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$2,010	Average$2,277	FlexibilityNo cancel fee	On-time69%

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$1,538+ Cheap flights from Reagan-National (DCA) 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National 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 Reagan-National to Guam

Keep the following information in mind while searching for Reagan-National to Guam flight deals. Data was last updated July 11, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Reagan-National to Guam

Cheapest flights from Reagan-National to GuamExplore the most affordable flight options available from Reagan-National to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2025.

Explore the most affordable flight options available from Reagan-National to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Reagan-National to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from Reagan-National with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Guam

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 11, 2025.

Read through reviews of airlines operating flights from Washington, D.C. Reagan-National Airport 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.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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 Reagan-National to Guam that include hotel bookings?

How can I find direct flights from Reagan-National to Guam?

Can I find deals for business class flights from Reagan-National to Guam?

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport 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 Reagan-National to Guam

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

Top airline flying from Reagan-National to Guam

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Reagan-National to Guam
Explore the most affordable flight options available from Reagan-National to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2025.