In terms of precipitation, rainfall in Bangkok Don Mueang Intl Airport ranges from 0.4 - 12.6 inches per month. September is typically the wettest month, when rainfall can reach 12.6 in. January is typically the driest time to visit Bangkok Don Mueang Intl Airport when rainfall is around 0.4 in.

If weather is an important factor for your trip to Bangkok Don Mueang Intl Airport, 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 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

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

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

How can I find direct flights from Washington to Don Mueang Intl?

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

Can I find deals for business class flights from Washington to Don Mueang Intl?

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

$395+ Flights from Washington to Bangkok Don Mueang Intl Airport

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Cheap flight deals from Washington to Don Mueang Intl

Cheapest flights from Washington to Don Mueang Intl
Explore the most affordable flight options available from Washington to Don Mueang Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 27, 2025.

Tue 12/309:30 pmSEA - DMK

1 stop23h 10mMultiple Airlines

Sat 1/3111:10 pmDMK - SEA

2 stops30h 55mMultiple Airlines

Deal found 12/26

$949

Fri 12/261:40 pmSEA - DMK

1 stop36h 05mMultiple Airlines

Tue 1/139:20 amDMK - SEA

2 stops48h 20mMultiple Airlines

Deal found 12/24

$1,255

Fri 12/261:40 pmSEA - DMK

1 stop36h 05mMultiple Airlines

Fri 1/1611:50 pmDMK - SEA

2 stops31h 41mMultiple Airlines

Deal found 12/24

$1,289

Fri 12/261:40 pmSEA - DMK

1 stop36h 05mMultiple Airlines

Wed 1/142:35 amDMK - SEA

2 stops26h 44mMultiple Airlines

Deal found 12/24

$1,344

Mon 12/2912:10 amSEA - DMK

2 stops33h 25mMultiple Airlines

Wed 1/77:25 pmDMK - SEA

3 stops38h 51mMultiple Airlines

Deal found 12/26

$1,373

Fri 12/261:40 pmSEA - DMK

1 stop36h 05mMultiple Airlines

Wed 1/149:20 amDMK - SEA

2 stops23h 50mMultiple Airlines

Deal found 12/24

$1,433

Thu 12/2512:10 amSEA - DMK

2 stops31h 30mMultiple Airlines

Thu 1/82:35 amDMK - SEA

2 stops31h 41mMultiple Airlines

Deal found 12/24

$1,549

Thu 12/259:30 pmSEA - DMK

1 stop23h 10mMultiple Airlines

Tue 1/137:30 amDMK - SEA

2 stops25h 40mMultiple Airlines

Deal found 12/24

$1,553

Best flights from Washington to Don Mueang Intl
Discover carefully curated flight deals from Washington to Don Mueang Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 27, 2025.

Sun 2/229:30 pmSEA - DMK

1 stop23h 10mMultiple Airlines

Sat 3/79:00 amDMK - SEA

2 stops37h 57mMultiple Airlines

Deal found 12/26

$911

Sun 3/810:30 pmSEA - DMK

1 stop23h 10mMultiple Airlines

Sat 3/142:30 amDMK - SEA

2 stops44h 17mMultiple Airlines

Deal found 12/27

$942

Wed 1/219:50 amPDX - DMK

2 stops21h 15mMultiple Airlines

Tue 1/274:00 amDMK - PDX

2 stops25h 40mMultiple Airlines

Deal found 12/24

$970

Tue 2/312:10 amSEA - DMK

1 stop28h 20mMultiple Airlines

Tue 3/179:00 amDMK - SEA

2 stops36h 02mMultiple Airlines

Deal found 12/26

$982

Tue 4/211:15 amSEA - DMK

1 stop25h 05mMultiple Airlines

Mon 5/47:25 amDMK - SEA

1 stop22h 45mMultiple Airlines

Deal found 12/24

$1,000

Fri 1/2312:10 amSEA - DMK

2 stops25h 05mMultiple Airlines

Sat 1/319:20 amDMK - SEA

2 stops24h 56mMultiple Airlines

Deal found 12/26

$1,004

Tue 1/2012:10 amSEA - DMK

2 stops28h 35mMultiple Airlines

Wed 2/47:30 amDMK - SEA

2 stops25h 40mMultiple Airlines

Deal found 12/26

$1,011

Sun 3/19:30 pmSEA - DMK

1 stop23h 10mMultiple Airlines

Mon 5/410:00 pmDMK - SEA

2 stops25h 00mMultiple Airlines

Deal found 12/24

$1,021

Tue 1/1312:10 amSEA - DMK

1 stop30h 20mMultiple Airlines

Mon 2/23:45 pmDMK - SEA

2 stops41h 25mMultiple Airlines

Deal found 12/26

$1,031

Fri 1/2312:20 pmSEA - DMK

1 stop23h 25mMultiple Airlines

Fri 1/302:35 amDMK - SEA

1 stop23h 05mMultiple Airlines

Deal found 12/26

$1,040

Wed 1/2112:20 pmSEA - DMK

1 stop23h 25mMultiple Airlines

Fri 1/302:35 amDMK - SEA

1 stop23h 05mMultiple Airlines

Deal found 12/26

$1,049

Mon 1/512:10 amSEA - DMK

2 stops25h 05mMultiple Airlines

Tue 1/137:45 amDMK - SEA

1 stop25h 25mMultiple Airlines

Deal found 12/25

$1,058

Wed 1/149:50 amPDX - DMK

2 stops21h 15mMultiple Airlines

Wed 2/410:10 pmDMK - PDX

3 stops31h 30mMultiple Airlines

Deal found 12/25

$1,115

Sat 1/249:50 amPDX - DMK

2 stops21h 15mMultiple Airlines

Fri 1/302:35 amDMK - PDX

3 stops45h 40mMultiple Airlines

Deal found 12/26

$1,274

Thu 6/410:10 amPDX - DMK

2 stops26h 30mMultiple Airlines

Fri 6/262:30 amDMK - PDX

2 stops26h 21mMultiple Airlines

Deal found 12/26

$2,297

Mon 3/309:50 amPDX - DMK

2 stops25h 40mMultiple Airlines

Mon 4/62:00 pmDMK - PDX

3 stops42h 30mMultiple Airlines

Deal found 12/26

$4,140

Last-minute flights from Washington to Don Mueang Intl
Discover last-minute flight deals from Washington to Don Mueang Intl. Data last updated December 27, 2025 and is based on user searches.

Tue 12/309:30 pmSEA - DMK

1 stop23h 10mMultiple Airlines

Sat 1/3111:10 pmDMK - SEA

2 stops30h 55mMultiple Airlines

Deal found 12/26

$949

Tue 1/1312:10 amSEA - DMK

1 stop30h 20mMultiple Airlines

Mon 2/23:45 pmDMK - SEA

2 stops41h 25mMultiple Airlines

Deal found 12/26

$1,031

Thu 1/155:50 amSEA - DMK

2 stops25h 15mMultiple Airlines

Fri 1/2310:00 pmDMK - SEA

2 stops25h 00mMultiple Airlines

Deal found 12/25

$890

Fri 1/163:45 pmSEA - DMK

1 stop32h 00mMultiple Airlines

Thu 1/2911:50 pmDMK - SEA

2 stops33h 59mMultiple Airlines

Deal found 12/25

$1,039

Mon 1/1912:20 pmSEA - DMK

1 stop23h 25mMultiple Airlines

Thu 1/292:35 amDMK - SEA

2 stops31h 14mMultiple Airlines

Deal found 12/26

$1,050

Tue 1/2012:10 amSEA - DMK

2 stops28h 35mMultiple Airlines

Wed 2/47:30 amDMK - SEA

2 stops25h 40mMultiple Airlines

Deal found 12/26

$1,011

Wed 1/219:50 amPDX - DMK

2 stops21h 15mMultiple Airlines

Tue 1/274:00 amDMK - PDX

2 stops25h 40mMultiple Airlines

Deal found 12/24

$970

Wed 1/2112:20 pmSEA - DMK

1 stop23h 25mMultiple Airlines

Fri 1/302:35 amDMK - SEA

1 stop23h 05mMultiple Airlines

Deal found 12/26

$1,049

Thu 1/225:50 amSEA - DMK

2 stops25h 15mMultiple Airlines

Thu 1/2911:50 pmDMK - SEA

2 stops29h 41mMultiple Airlines

Deal found 12/25

$878

Fri 1/2312:10 amSEA - DMK

2 stops25h 05mMultiple Airlines

Sat 1/319:20 amDMK - SEA

2 stops24h 56mMultiple Airlines

Deal found 12/26

$1,004

Fri 1/2312:20 pmSEA - DMK

1 stop23h 25mMultiple Airlines

Fri 1/302:35 amDMK - SEA

1 stop23h 05mMultiple Airlines

Deal found 12/26

$1,040

Sun 1/259:30 pmSEA - DMK

1 stop23h 10mMultiple Airlines

Sun 2/111:10 pmDMK - SEA

2 stops30h 55mMultiple Airlines

Deal found 12/25

$1,022

One-way flights from Washington to Don Mueang Intl
Search for one-way flight options from Washington to Don Mueang Intl. Find affordable one-way fares based on user searches. Data last updated December 27, 2025.

Mon 1/512:10 amSEA - DMK

2 stops25h 05mMultiple Airlines

Deal found 12/25

$395

Mon 1/1212:10 amSEA - DMK

2 stops25h 05mMultiple Airlines

Deal found 12/25

$404

Sun 3/19:30 pmSEA - DMK

1 stop33h 40mMultiple Airlines

Deal found 12/25

$410

Sat 1/2412:10 amSEA - DMK

2 stops25h 05mMultiple Airlines

Deal found 12/25

$412

Sat 1/3112:10 amSEA - DMK

2 stops31h 15mMultiple Airlines

Deal found 12/27

$418

Sat 1/1712:10 amSEA - DMK

2 stops31h 15mMultiple Airlines

Deal found 12/25

$419

Sat 2/712:10 amSEA - DMK

2 stops31h 15mMultiple Airlines

Deal found 12/24

$420

Mon 5/1112:10 amSEA - DMK

2 stops32h 00mMultiple Airlines

Deal found 12/25

$423

Mon 1/199:50 amPDX - DMK

2 stops21h 15mMultiple Airlines

Deal found 12/26

$444

Sat 3/79:24 amPDX - DMK

3 stops43h 21mMultiple Airlines

Deal found 12/25

$448

Sat 1/241:38 pmPDX - DMK

3 stops35h 37mMultiple Airlines

Deal found 12/25

$491

Sun 1/189:50 amPDX - DMK

2 stops25h 55mMultiple Airlines

Deal found 12/26

$497

Find flight deals from Washington to Don Mueang Intl

Round-trip from	$878 (Mytrip)
One-way from	$395 (Trip.com)
Popular in	December
Cheapest in	September
Average price	$1,244

From Washington to Bangkok Don Mueang Intl

Search Deals

One-way flight from Washington to Bangkok Don Mueang Intl

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($58 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 2/22

9:30 pm-11:40 am

1 stop23h 10m

Bangkok Don Mueang Intl

Sat 3/7

9:00 am-7:57 am

2 stops37h 57m

$911

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 3/8

10:30 pm-11:40 am

1 stop23h 10m

Bangkok Don Mueang Intl

Sat 3/14

2:30 am-8:47 am

2 stops44h 17m

$942

PortlandBangkok

PDX - DMK

PDXDMK

Portland

Wed 1/21

9:50 am-10:05 pm

2 stops21h 15m

Bangkok Don Mueang Intl

Tue 1/27

4:00 am-2:40 pm

2 stops25h 40m

$970

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Tue 2/3

12:10 am-7:30 pm

1 stop28h 20m

Bangkok Don Mueang Intl

Tue 3/17

9:00 am-7:02 am

2 stops36h 02m

$982

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Tue 4/21

1:15 am-4:20 pm

1 stop25h 05m

Bangkok Don Mueang Intl

Mon 5/4

7:25 am-4:10 pm

1 stop22h 45m

$1,000

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Fri 1/23

12:10 am-4:15 pm

2 stops25h 05m

Bangkok Don Mueang Intl

Sat 1/31

9:20 am-7:16 pm

2 stops24h 56m

$1,004

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Tue 1/20

12:10 am-7:45 pm

2 stops28h 35m

Bangkok Don Mueang Intl

Wed 2/4

7:30 am-6:10 pm

2 stops25h 40m

$1,011

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 3/1

9:30 pm-11:40 am

1 stop23h 10m

Bangkok Don Mueang Intl

Mon 5/4

10:00 pm-9:00 am

2 stops25h 00m

$1,021

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Tue 1/13

12:10 am-9:30 pm

1 stop30h 20m

Bangkok Don Mueang Intl

Mon 2/2

3:45 pm-6:10 pm

2 stops41h 25m

$1,031

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Fri 1/23

12:20 pm-2:45 am

1 stop23h 25m

Bangkok Don Mueang Intl

Fri 1/30

2:35 am-10:40 am

1 stop23h 05m

$1,040

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Showing 1-10 of 34 results

Best time to book a flight from Washington to Don Mueang Intl

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

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

Unlike at noon, when flights are generally more expensive, you can save up to 35% on flights from State of Washington to Bangkok Don Mueang Intl Airport by exploring options for tickets in the afternoon.

Related info for your journey

Can I find deals for flights from Washington to Don Mueang Intl that include hotel bookings?
Yes. In addition to deals on Washington to Don Mueang Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington to Don Mueang Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Don Mueang Intl.
Can I find deals for business class flights from Washington to Don Mueang Intl?
Yes. Cheapflights offers flight deals from Washington to Don Mueang Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

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$395+ Cheap flights from Washington to Don Mueang Intl (DMK)

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington to Don Mueang Intl with Cheapflights

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Cheap flight deals from Washington to Don Mueang Intl

Cheapest flights from Washington to Don Mueang IntlExplore the most affordable flight options available from Washington to Don Mueang Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 27, 2025.

Explore the most affordable flight options available from Washington to Don Mueang Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 27, 2025.

Find flight deals from Washington to Don Mueang Intl

Keep the following information in mind while searching for Washington to Don Mueang Intl flight deals. Data was last updated December 27, 2025.

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 Washington to Bangkok Don Mueang Intl Airport that are best for you.

Best time to book a flight from Washington to Don Mueang Intl

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

Cheapflights Insights

Everything you need to know about your flight from Washington to Bangkok Don Mueang Intl Airport

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

Find hourly flight availability from Washington to Don Mueang Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 27, 2025.

Related info for your journey

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

How can I find direct flights from Washington to Don Mueang Intl?

Can I find deals for business class flights from Washington to Don Mueang Intl?

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Alternative routes for Washington to Don Mueang Intl

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Cheapest flights from Washington to Don Mueang Intl
Explore the most affordable flight options available from Washington to Don Mueang Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 27, 2025.