$377+ 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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DMK
Dec 10 — Dec 171
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap 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 November 10, 2025.
Round-trip from | $841 (Mytrip) |
|---|---|
One-way from | $377 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $816 |
Find 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 November 10, 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 November 10, 2025.
This Mytrip deal was found by Cheapflights users on 11/9. 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 11/912:10 amSEA - DMK
2 stops33h 25mMultiple Airlines
Mon 11/177:30 pmDMK - SEA
2 stops33h 25mMultiple Airlines
Deal found 11/9![Multiple Airlines logo]()
$810
This Trip.com deal was found by Cheapflights users on 11/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/105:55 pmPDX - DMK
2 stops39h 20mMultiple Airlines
Wed 11/263:10 amDMK - PDX
2 stops42h 08mMultiple Airlines
Deal found 11/8![Multiple Airlines logo]()
$920
This Mytrip deal was found by Cheapflights users on 11/10. 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.
Thu 12/412:10 amSEA - DMK
2 stops33h 25mMultiple Airlines
Thu 12/188:45 amDMK - SEA
2 stops24h 55mMultiple Airlines
Deal found 11/10![Multiple Airlines logo]()
$929
This Mytrip deal was found by Cheapflights users on 11/9. 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 11/1112:10 amSEA - DMK
1 stop28h 40mMultiple Airlines
Wed 12/172:30 amDMK - SEA
2 stops31h 46mMultiple Airlines
Deal found 11/9![Multiple Airlines logo]()
$931
This Mytrip deal was found by Cheapflights users on 11/9. 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.
Mon 11/2412:10 amSEA - DMK
1 stop20h 40mMultiple Airlines
Tue 12/97:45 amDMK - SEA
1 stop25h 25mMultiple Airlines
Deal found 11/9![Multiple Airlines logo]()
$948
This Mytrip deal was found by Cheapflights users on 11/10. 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 11/1012:10 amSEA - DMK
2 stops32h 00mMultiple Airlines
Tue 11/187:30 amDMK - SEA
2 stops25h 40mMultiple Airlines
Deal found 11/10![Multiple Airlines logo]()
$952
This Mytrip deal was found by Cheapflights users on 11/9. 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 11/3012:10 amSEA - DMK
2 stops33h 25mMultiple Airlines
Fri 12/122:30 amDMK - SEA
2 stops31h 46mMultiple Airlines
Deal found 11/9![Multiple Airlines logo]()
$958
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2010:05 amSEA - DMK
1 stop27h 55mMultiple Airlines
Fri 12/52:30 amDMK - SEA
2 stops33h 08mMultiple Airlines
Deal found 11/8![Multiple Airlines logo]()
$959
This Mytrip deal was found by Cheapflights users on 11/10. 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.
Sun 11/1612:10 amSEA - DMK
1 stop28h 40mMultiple Airlines
Tue 11/257:45 amDMK - SEA
1 stop25h 25mMultiple Airlines
Deal found 11/10![Multiple Airlines logo]()
$962
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
Wed 11/269:30 pmSEA - DMK
1 stop23h 10mMultiple Airlines
Wed 12/102:30 amDMK - SEA
2 stops31h 18mMultiple Airlines
Deal found 11/10![Multiple Airlines logo]()
$967
This Mytrip deal was found by Cheapflights users on 11/9. 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 12/29:50 amPDX - DMK
2 stops21h 15mMultiple Airlines
Sun 12/75:50 pmDMK - PDX
3 stops39h 40mMultiple Airlines
Deal found 11/9![Multiple Airlines logo]()
$979
This Trip.com deal was found by Cheapflights users on 11/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:30 pmPDX - DMK
2 stops39h 45mMultiple Airlines
Thu 11/206:15 amDMK - PDX
2 stops29h 22mMultiple Airlines
Deal found 11/8![Multiple Airlines logo]()
$1,001
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 November 10, 2025.
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
Sat 1/31
12:10 am-12:35 am
2 stops33h 25m
Bangkok Don Mueang Intl
Sun 2/15
5:25 pm-1:55 pm
2 stops35h 30m
$859
PortlandBangkok
PDX - DMK
PDXDMK
Portland
Fri 1/23
9:50 am-10:05 pm
2 stops21h 15m
Bangkok Don Mueang Intl
Sat 1/31
8:45 am-6:30 pm
2 stops24h 45m
$881
SeattleBangkok
SEA - DMK
SEADMK
Seattle/Tacoma Intl
Sun 1/11
8:45 am-10:10 pm
1 stop22h 25m
Bangkok Don Mueang Intl
Thu 1/29
11:20 am-7:10 am
2 stops34h 50m
$892
SeattleBangkok
SEA - DMK
SEADMK
Seattle/Tacoma Intl
Sat 1/10
12:10 am-7:45 pm
2 stops28h 35m
Bangkok Don Mueang Intl
Thu 1/15
7:30 am-6:10 pm
2 stops25h 40m
$910
SeattleBangkok
SEA - DMK
SEADMK
Seattle/Tacoma Intl
Fri 1/30
8:45 am-10:10 pm
1 stop22h 25m
Bangkok Don Mueang Intl
Wed 2/11
6:45 pm-7:10 am
2 stops27h 25m
$935
SeattleBangkok
SEA - DMK
SEADMK
Seattle/Tacoma Intl
Thu 1/29
9:30 pm-11:40 am
1 stop23h 10m
Bangkok Don Mueang Intl
Mon 2/9
11:10 pm-3:05 pm
2 stops30h 55m
$936
SeattleBangkok
SEA - DMK
SEADMK
Seattle/Tacoma Intl
Fri 1/30
8:45 am-10:10 pm
1 stop22h 25m
Bangkok Don Mueang Intl
Wed 2/4
11:20 am-7:10 am
2 stops34h 50m
$979
PortlandBangkok
PDX - DMK
PDXDMK
Portland
Thu 11/13
5:30 pm-12:15 am
2 stops39h 45m
Bangkok Don Mueang Intl
Thu 11/20
6:15 am-8:37 pm
2 stops29h 22m
$1,001
SeattleBangkok
SEA - DMK
SEADMK
Seattle/Tacoma Intl
Fri 1/23
9:30 pm-11:40 am
1 stop23h 10m
Bangkok Don Mueang Intl
Tue 2/3
11:10 pm-3:05 pm
2 stops30h 55m
$1,006
SeattleBangkok
SEA - DMK
SEADMK
Seattle/Tacoma Intl
Mon 1/5
10:05 am-10:05 pm
2 stops21h 00m
Bangkok Don Mueang Intl
Tue 1/20
8:45 am-6:40 pm
2 stops24h 55m
$1,006
Showing 1-10 of 33 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?
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 November 10, 2025.
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.