What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Tamuning round-trip?

United Airlines, at $2,017, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Tamuning. An alternate airline flying to your destination would be Delta. United Airlines is 15% cheaper than the average price of flights available within the next 90 days to this destination.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Tamuning?

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

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Tamuning?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Tamuning flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

Users have found that flying from Washington, D.C. Dulles Intl Airport to Tamuning on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Tamuning?

The best pricing can be found in the month of February. Prices to Tamuning from Washington, D.C. Dulles Intl Airport average $2,249. You can even find prices in February for less than $2,249, as users have found deals to Tamuning from as low as $1,214. The month of August appears to be one of the more expensive times to travel to Tamuning from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 16%.

What is the cheapest time of day to fly from IAD to GUM?

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

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.

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.

$1,538+ Flights from Washington, D.C. Dulles Intl Airport to Tamuning

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Cheap flight deals from Dulles Intl to Tamuning

Round-trip from	$2,017 (United Airlines)
One-way from	$1,538 (Delta)
Popular in	January
Cheapest in	October
Average price	$2,357

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. 11% potential increase in price ($311 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($94 potential savings vs. average RT price).

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Average for round-trip flights in June 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 June 12, 2025.

Fri 10/1012:25 pmIAD - GUM

1 stop26h 00mUnited Airlines

Sun 11/27:05 pmGUM - IAD

1 stop35h 35mUnited Airlines

Deal found 6/10

$2,000

Thu 9/46:00 amIAD - GUM

2 stops43h 15mDelta

Sat 9/205:00 pmGUM - IAD

2 stops44h 00mDelta

Deal found 6/10

$2,033

Best flights from Dulles Intl to Tamuning
Discover carefully curated flight deals from Dulles Intl to Tamuning that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Thu 9/46:35 amIAD - GUM

2 stops21h 30mUnited Airlines

Sat 9/207:10 amGUM - IAD

2 stops23h 33mUnited Airlines

Deal found 6/12

$2,017

Thu 9/46:00 amIAD - GUM

2 stops43h 15mDelta

Sat 9/205:00 pmGUM - IAD

2 stops44h 00mDelta

Deal found 6/10

$2,033

Last-minute flights from Dulles Intl to Tamuning
Discover last-minute flight deals from Dulles Intl to Tamuning. Data last updated June 12, 2025 and is based on user searches.

Wed 6/186:20 amIAD - GUM

2 stops42h 55mDelta

Fri 7/45:00 pmGUM - IAD

2 stops44h 43mDelta

Deal found 6/10

$2,848

Wed 6/1812:20 pmIAD - GUM

1 stop26h 00mUnited Airlines

Fri 7/47:00 pmGUM - IAD

1 stop34h 45mUnited Airlines

Deal found 6/10

$3,010

Wed 7/96:00 amIAD - GUM

2 stops28h 10mDelta

Wed 7/165:00 pmGUM - IAD

2 stops44h 21mDelta

Deal found 6/11

$2,198

Thu 7/176:35 amIAD - GUM

2 stops21h 30mUnited Airlines

Wed 7/237:15 amGUM - IAD

2 stops25h 37mUnited Airlines

Deal found 6/11

$2,357

One-way flights from Dulles Intl to Tamuning
Search for one-way flight options from Dulles Intl to Tamuning. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Wed 8/276:00 amIAD - GUM

2 stops28h 10mDelta

Deal found 6/10

$1,538

Mon 6/2312:20 pmIAD - GUM

1 stop26h 00mUnited Airlines

Deal found 6/12

$1,724

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Thu 9/4

6:35 am-6:05 pm

2 stops21h 30m

Tamuning Guam Intl

Sat 9/20

7:10 am-4:43 pm

2 stops23h 33m

$2,017

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Thu 9/4

6:00 am-3:15 pm

2 stops43h 15m

Tamuning Guam Intl

Sat 9/20

5:00 pm-11:00 pm

2 stops44h 00m

$2,033

Washington, D.C.Tamuning

IAD - GUM

IADGUM

Washington, D.C. Dulles Intl

Wed 8/27

6:00 am-12:10 am

2 stops28h 10m

$1,538

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 6/10

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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Tamuning

Rainfall in Tamuning by month

In terms of precipitation, rainfall in Tamuning 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 Tamuning when rainfall is around 2.6 in.

Temperature in Tamuning by month

If weather is an important factor for your trip to Tamuning, 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 Tamuning

To help decide which airline to fly from Washington, D.C. to Tamuning, see what other customers have to say about Delta and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,946 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

7,946 reviews

Delta

8.0

Very good

7,946 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

8,790 reviews

Delta

8.0

Very good

7,946 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

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.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Tamuning round-trip?
United Airlines, at $2,017, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Tamuning. An alternate airline flying to your destination would be Delta. United Airlines is 15% cheaper than the average price of flights available within the next 90 days to this destination.
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.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Tamuning?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Tamuning (average of $1,977). Flying from Washington, D.C. Dulles Intl Airport to Tamuning 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.

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Top airline flying from Dulles Intl to Tamuning

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,916	Average$2,277	FlexibilityNo cancel fee	On-time69%

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$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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Tamuning with Cheapflights

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Cheap flight deals from Dulles Intl to Tamuning

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Find flight deals from Dulles Intl to Tamuning

Cheapest flights from Dulles Intl to TamuningExplore 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 June 12, 2025.

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 June 12, 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Tamuning

Rainfall in Tamuning by month

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

Temperature in Tamuning by month

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

Reviews of airlines servicing Tamuning

To help decide which airline to fly from Washington, D.C. to Tamuning, see what other customers have to say about Delta and United Airlines. You can also see how each airline compares 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 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?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Tamuning round-trip?

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

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

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

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Tamuning?

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 Tamuning

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

Top airline flying from Dulles Intl to Tamuning

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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 June 12, 2025.