Don Mueang Intl

$398+ 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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DMK
Mar 14 — Mar 211
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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 February 12, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/229:30 pm
SEA
-
DMK
1 stop23h 10m
Multiple Airlines
Tue 3/103:45 pm
DMK
-
SEA
2 stops41h 55m
Multiple Airlines
Deal found 2/10$869
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1510:30 pm
SEA
-
DMK
1 stop23h 10m
Multiple Airlines
Tue 3/313:30 pm
DMK
-
SEA
2 stops42h 35m
Multiple Airlines
Deal found 2/11$891
This Mytrip deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2410:15 am
SEA
-
DMK
2 stops22h 15m
Multiple Airlines
Fri 5/86:20 pm
DMK
-
SEA
2 stops28h 25m
Multiple Airlines
Deal found 2/10$892
This Mytrip deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:55 am
SEA
-
DMK
2 stops31h 50m
Multiple Airlines
Tue 5/126:40 am
DMK
-
SEA
2 stops22h 15m
Multiple Airlines
Deal found 2/11$897
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:10 pm
SEA
-
DMK
1 stop22h 15m
Multiple Airlines
Mon 5/183:30 pm
DMK
-
SEA
2 stops42h 35m
Multiple Airlines
Deal found 2/10$918
This Mytrip deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:55 am
SEA
-
DMK
2 stops25h 10m
Multiple Airlines
Wed 5/69:20 am
DMK
-
SEA
2 stops24h 45m
Multiple Airlines
Deal found 2/10$920
This Mytrip deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/812:10 am
SEA
-
DMK
2 stops32h 30m
Multiple Airlines
Mon 3/166:55 am
DMK
-
SEA
2 stops22h 00m
Multiple Airlines
Deal found 2/9$923
This Mytrip deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:55 am
SEA
-
DMK
2 stops30h 25m
Multiple Airlines
Thu 4/307:25 am
DMK
-
SEA
2 stops21h 30m
Multiple Airlines
Deal found 2/8$932
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2610:15 am
SEA
-
DMK
1 stop22h 45m
Multiple Airlines
Sat 5/93:30 pm
DMK
-
SEA
2 stops42h 00m
Multiple Airlines
Deal found 2/10$940
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1010:15 am
SEA
-
DMK
1 stop22h 45m
Multiple Airlines
Wed 4/298:10 am
DMK
-
SEA
2 stops25h 55m
Multiple Airlines
Deal found 2/11$944
This Mytrip deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:15 am
SEA
-
DMK
2 stops23h 15m
Multiple Airlines
Wed 9/169:20 am
DMK
-
SEA
2 stops24h 20m
Multiple Airlines
Deal found 2/9$950
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1211:10 pm
SEA
-
DMK
1 stop22h 15m
Multiple Airlines
Fri 4/243:30 pm
DMK
-
SEA
2 stops42h 00m
Multiple Airlines
Deal found 2/9$951

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 February 12, 2026.

Round-trip from

$869
(Kiwi.com)

One-way from

$398
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$767
From Washington to Bangkok Don Mueang Intl
One-way flight from Washington to Bangkok Don Mueang Intl
Highest demand for flights based on searches. 5% potential increase in price ($54 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Average for round-trip flights in February 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Don Mueang Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 12, 2026.
Use the filters below to find and compare flights from Washington to Bangkok Don Mueang Intl Airport that are best for you.

Fly from

Washington

Fly to

Don Mueang Intl

Route

Depart

Return

Price

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Mon 4/27

12:55 am-4:05 pm

2 stops25h 10m

Bangkok Don Mueang Intl

Wed 5/6

9:20 am-8:05 pm

2 stops24h 45m

$920

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 4/12

11:10 pm-11:25 am

1 stop22h 15m

Bangkok Don Mueang Intl

Fri 4/24

3:30 pm-7:30 pm

2 stops42h 00m

$951

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Thu 3/26

9:45 am-11:00 pm

1 stop23h 15m

Bangkok Don Mueang Intl

Thu 4/2

7:25 am-2:55 pm

2 stops21h 30m

$982

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Wed 2/18

9:30 pm-11:40 am

1 stop23h 10m

Bangkok Don Mueang Intl

Wed 3/4

9:20 am-6:10 pm

2 stops23h 50m

$984

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sat 3/28

9:45 am-11:00 pm

1 stop23h 15m

Bangkok Don Mueang Intl

Sat 4/4

9:20 am-7:30 pm

2 stops24h 10m

$990

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Tue 4/14

12:55 am-4:05 pm

2 stops25h 10m

Bangkok Don Mueang Intl

Thu 4/30

9:20 am-7:30 pm

2 stops24h 10m

$991

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 2/22

9:30 pm-11:40 am

1 stop23h 10m

Bangkok Don Mueang Intl

Tue 3/3

8:45 am-5:30 pm

2 stops23h 45m

$1,005

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Wed 2/25

9:30 pm-11:40 am

1 stop23h 10m

Bangkok Don Mueang Intl

Fri 3/6

1:50 pm-6:10 pm

2 stops19h 20m

$1,010

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 3/1

9:30 pm-11:40 am

1 stop23h 10m

Bangkok Don Mueang Intl

Wed 4/1

10:00 pm-9:05 am

2 stops25h 05m

$1,012

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Wed 3/11

10:30 pm-11:40 am

1 stop23h 10m

Bangkok Don Mueang Intl

Mon 3/23

10:00 pm-9:00 am

2 stops25h 00m

$1,021

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 42 results
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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
No data available for this route at this time. Please check back soon.

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?

    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.

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Alternative routes for Washington to Don Mueang Intl

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