In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bangkok Don Mueang Intl Airport to Washington, D.C. as you normally would.

Most accurate provider : When it comes to deals on Bangkok Don Mueang Intl Airport-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bangkok Don Mueang Intl Airport-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bangkok Don Mueang Intl Airport-Washington, D.C. flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Bangkok Don Mueang Intl Airport-Washington, D.C. 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 Bangkok Don Mueang Intl Airport-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Don Mueang Intl to Washington, D.C.?

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

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

Yes. Cheapflights offers flight deals from Don Mueang Intl to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$647+ Flights from Bangkok Don Mueang Intl Airport to Washington, D.C.

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Cheap flight deals from Don Mueang Intl to Washington, D.C.

Cheapest flights from Don Mueang Intl to Washington, D.C.
Explore the most affordable flight options available from Don Mueang Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Wed 12/244:50 pmDMK - IAD

3 stops34h 56mMultiple Airlines

Wed 12/312:35 pmIAD - DMK

2 stops23h 55mMultiple Airlines

Deal found 12/11

$1,707

Best flights from Don Mueang Intl to Washington, D.C.
Discover carefully curated flight deals from Don Mueang Intl to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Sun 2/81:40 pmDMK - IAD

2 stops31h 25mMultiple Airlines

Sun 2/152:35 pmIAD - DMK

2 stops25h 45mMultiple Airlines

Deal found 12/11

$1,058

Wed 12/244:50 pmDMK - IAD

3 stops34h 56mMultiple Airlines

Wed 12/312:35 pmIAD - DMK

2 stops23h 55mMultiple Airlines

Deal found 12/11

$1,707

Last-minute flights from Don Mueang Intl to Washington, D.C.
Discover last-minute flight deals from Don Mueang Intl to Washington, D.C.. Data last updated December 12, 2025 and is based on user searches.

Wed 12/244:50 pmDMK - IAD

3 stops34h 56mMultiple Airlines

Wed 12/312:35 pmIAD - DMK

2 stops23h 55mMultiple Airlines

Deal found 12/11

$1,707

One-way flights from Don Mueang Intl to Washington, D.C.
Search for one-way flight options from Don Mueang Intl to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Mon 2/1610:45 pmDMK - IAD

3 stops45h 35mMultiple Airlines

Deal found 12/9

$647

Sun 3/2211:00 pmDMK - IAD

3 stops46h 05mMultiple Airlines

Deal found 12/10

$651

Sun 3/83:40 amDMK - IAD

3 stops37h 00mMultiple Airlines

Deal found 12/10

$662

Wed 2/411:45 pmDMK - IAD

3 stops44h 35mMultiple Airlines

Deal found 12/10

$663

Sat 3/218:55 pmDMK - IAD

2 stops31h 00mMultiple Airlines

Deal found 12/11

$665

Tue 4/710:50 pmDMK - IAD

3 stops45h 55mMultiple Airlines

Deal found 12/10

$671

Tue 4/148:50 pmDMK - IAD

2 stops30h 15mMultiple Airlines

Deal found 12/10

$675

Fri 4/1011:40 pmDMK - IAD

3 stops45h 05mMultiple Airlines

Deal found 12/10

$677

Sun 4/199:05 pmDMK - IAD

2 stops30h 00mMultiple Airlines

Deal found 12/10

$679

Thu 4/99:10 pmDMK - IAD

3 stops47h 35mMultiple Airlines

Deal found 12/10

$683

Sat 5/239:40 pmDMK - IAD

3 stops46h 00mMultiple Airlines

Deal found 12/11

$700

Tue 2/2411:55 pmDMK - IAD

3 stops45h 10mMultiple Airlines

Deal found 12/10

$705

Find flight deals from Don Mueang Intl to Washington, D.C.

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 1 star
Round-trip from	$1,058 (Mytrip)
One-way from	$647 (Kiwi.com)
Popular in	August
Cheapest in	October
Average price	$1,265

Provider with most accurate pricing for Bangkok Don Mueang Intl-Washington, D.C. (WAS) flight deals.

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Provider most trusted by Cheapflights users for Bangkok Don Mueang Intl-Washington, D.C. (WAS) flights.

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From Bangkok Don Mueang Intl to Washington, D.C. (WAS)

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One-way flight from Bangkok Don Mueang Intl to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 2% potential increase in price ($33 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Sun 2/8

1:40 pm-9:05 am

2 stops31h 25m

Washington, D.C. Dulles Intl

Sun 2/15

2:35 pm-4:20 am

2 stops25h 45m

$1,058

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Wed 12/24

4:50 pm-3:46 pm

3 stops34h 56m

Washington, D.C. Dulles Intl

Wed 12/31

2:35 pm-2:30 am

2 stops23h 55m

$1,707

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Sun 3/8

3:40 am-5:40 am

3 stops37h 00m

$662

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Wed 2/4

11:45 pm-8:20 am

3 stops44h 35m

$663

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Tue 4/7

10:50 pm-9:45 am

3 stops45h 55m

$671

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Tue 4/14

8:50 pm-4:05 pm

2 stops30h 15m

$675

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Fri 4/10

11:40 pm-9:45 am

3 stops45h 05m

$677

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Sun 4/19

9:05 pm-4:05 pm

2 stops30h 00m

$679

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Sat 5/23

9:40 pm-8:40 am

3 stops46h 00m

$700

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Sat 4/18

8:50 pm-4:05 pm

2 stops30h 15m

$717

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 13 results

Most accurate provider: When it comes to deals on Bangkok Don Mueang Intl Airport-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bangkok Don Mueang Intl Airport-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bangkok Don Mueang Intl Airport-Washington, D.C. flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Bangkok Don Mueang Intl Airport-Washington, D.C. 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 Bangkok Don Mueang Intl Airport-Washington, D.C. 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 Don Mueang Intl to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Don Mueang 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 Bangkok Don Mueang Intl Airport to Washington, D.C.

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

Related info for your journey

Can I find deals for flights from Don Mueang Intl to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Don Mueang Intl to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Don Mueang Intl to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Don Mueang Intl to Washington, D.C..
Can I find deals for business class flights from Don Mueang Intl to Washington, D.C.?
Yes. Cheapflights offers flight deals from Don Mueang Intl to Washington, D.C. 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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$647+ Cheap flights from Don Mueang Intl (DMK) to Washington, D.C. (WAS)

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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Don Mueang Intl to Washington, D.C. with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Don Mueang Intl to Washington, D.C.

Cheapest flights from Don Mueang Intl to Washington, D.C.Explore the most affordable flight options available from Don Mueang Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Explore the most affordable flight options available from Don Mueang Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Find flight deals from Don Mueang Intl to Washington, D.C.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from Don Mueang Intl to Washington, D.C.

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

Cheapflights Insights

Everything you need to know about your flight from Bangkok Don Mueang Intl Airport to Washington, D.C.

Related info for your journey

Find useful and relevant information for your journey from Don Mueang Intl to Washington, D.C.. 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 Don Mueang Intl to Washington, D.C. that include hotel bookings?

How can I find direct flights from Don Mueang Intl to Washington, D.C.?

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

Traveling to a place near Washington, D.C.?

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Cheapest flights from Don Mueang Intl to Washington, D.C.
Explore the most affordable flight options available from Don Mueang Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.