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Cheap flights from Seattle to Bangkok from $384

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Bangkok departing on 8/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Bangkok

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:10 pm - 11:25 am
SEA
-
DMK
22h 15m
1 stop
Multiple Airlines Logo
7:30 am - 3:15 pm
DMK
-
SEA
21h 45m
2 stops
$888Multiple Airlines
Sun, Sep 20 - Fri, Sep 25
Multiple Airlines Logo
11:10 pm - 11:25 am
SEA
-
DMK
22h 15m
1 stop
Multiple Airlines Logo
8:45 pm - 8:10 am
DMK
-
SEA
25h 25m
2 stops
$902Multiple Airlines
Sun, Sep 27 - Mon, Oct 26
Multiple Airlines Logo
11:10 pm - 11:25 am
SEA
-
DMK
22h 15m
1 stop
Multiple Airlines Logo
7:30 am - 2:55 pm
DMK
-
SEA
21h 25m
2 stops
$919Multiple Airlines
Sun, Sep 20 - Thu, Oct 1
Multiple Airlines Logo
11:10 pm - 11:25 am
SEA
-
DMK
22h 15m
1 stop
Multiple Airlines Logo
7:30 am - 3:15 pm
DMK
-
SEA
21h 45m
2 stops
$920Multiple Airlines
Sun, Sep 20 - Fri, Oct 2
Multiple Airlines Logo
11:10 pm - 11:25 am
SEA
-
DMK
22h 15m
1 stop
Multiple Airlines Logo
1:40 pm - 7:15 pm
DMK
-
SEA
19h 35m
2 stops
$925Multiple Airlines
Sun, Sep 20 - Thu, Sep 24
Multiple Airlines Logo
11:10 pm - 11:25 am
SEA
-
DMK
22h 15m
1 stop
Multiple Airlines Logo
7:30 am - 3:15 pm
DMK
-
SEA
21h 45m
2 stops
$927Multiple Airlines
Sun, Sep 13 - Thu, Sep 24
Multiple Airlines Logo
11:10 pm - 11:25 am
SEA
-
DMK
22h 15m
1 stop
Multiple Airlines Logo
9:20 am - 8:05 pm
DMK
-
SEA
24h 45m
2 stops
$935Multiple Airlines
Sun, Sep 20 - Wed, Sep 30
Multiple Airlines Logo
11:10 pm - 11:25 am
SEA
-
DMK
22h 15m
1 stop
Multiple Airlines Logo
7:30 am - 2:55 pm
DMK
-
SEA
21h 25m
2 stops
$943Multiple Airlines
Sun, Sep 27 - Sun, Oct 25
Multiple Airlines Logo
11:10 pm - 11:25 am
SEA
-
DMK
22h 15m
1 stop
Multiple Airlines Logo
12:20 pm - 8:05 pm
DMK
-
SEA
21h 45m
1 stop
$961Multiple Airlines
Sun, Aug 23 - Wed, Sep 9
Multiple Airlines Logo
11:10 pm - 11:25 am
SEA
-
DMK
22h 15m
1 stop
Multiple Airlines Logo
8:45 pm - 7:10 am
DMK
-
SEA
25h 25m
2 stops
$997Multiple Airlines
Sun, Oct 4 - Mon, Nov 2

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Bangkok Don Mueang Intl Airport 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, momondo users made 832,500 searches. Data last updated April 18, 2026.
Use the filters below to find and compare flights from Seattle to Bangkok Don Mueang Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 9/20

11:10 pm-11:25 am

1 stop22h 15m

Bangkok Don Mueang Intl

Fri 9/25

7:30 am-3:15 pm

2 stops21h 45m

$888

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 9/27

11:10 pm-11:25 am

1 stop22h 15m

Bangkok Don Mueang Intl

Mon 10/26

8:45 pm-8:10 am

2 stops25h 25m

$902

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 9/20

11:10 pm-11:25 am

1 stop22h 15m

Bangkok Don Mueang Intl

Thu 10/1

7:30 am-2:55 pm

2 stops21h 25m

$919

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 9/20

11:10 pm-11:25 am

1 stop22h 15m

Bangkok Don Mueang Intl

Fri 10/2

7:30 am-3:15 pm

2 stops21h 45m

$920
Quickest round-trip

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 9/20

11:10 pm-11:25 am

1 stop22h 15m

Bangkok Don Mueang Intl

Thu 9/24

1:40 pm-7:15 pm

2 stops19h 35m

$925

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 9/13

11:10 pm-11:25 am

1 stop22h 15m

Bangkok Don Mueang Intl

Thu 9/24

7:30 am-3:15 pm

2 stops21h 45m

$927

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 9/20

11:10 pm-11:25 am

1 stop22h 15m

Bangkok Don Mueang Intl

Wed 9/30

9:20 am-8:05 pm

2 stops24h 45m

$935

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 9/27

11:10 pm-11:25 am

1 stop22h 15m

Bangkok Don Mueang Intl

Sun 10/25

7:30 am-2:55 pm

2 stops21h 25m

$943

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 8/23

11:10 pm-11:25 am

1 stop22h 15m

Bangkok Don Mueang Intl

Wed 9/9

12:20 pm-8:05 pm

1 stop21h 45m

$961

SeattleBangkok

SEA - DMK

SEADMK

Seattle/Tacoma Intl

Sun 10/4

11:10 pm-11:25 am

1 stop22h 15m

Bangkok Don Mueang Intl

Mon 11/2

8:45 pm-7:10 am

2 stops25h 25m

$997

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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When to book flights from Seattle to Bangkok Don Mueang Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Bangkok Don Mueang Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Bangkok Don Mueang Intl Airport (SEA to DMK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Bangkok Don Mueang Intl Airport

Fastest flight time

20h 20m

Direct flights

None
The fastest flight from Seattle to Bangkok Don Mueang Intl Airport takes 20h 20m
There are no direct flights from Seattle to Bangkok Don Mueang Intl Airport. There are no popular flight routes from Seattle to Bangkok Don Mueang Intl Airport.
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Frequently asked questions about flying from Seattle to Bangkok Don Mueang Intl Airport

  • How far is Seattle/Tacoma Intl to Bangkok Don Mueang Intl by plane?

    There are 7425.2 mi between Seattle/Tacoma Intl and Bangkok Don Mueang Intl. Typically, this will take 20h 20m by plane in normal conditions.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Bangkok Don Mueang Intl Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Bangkok Don Mueang Intl Airport refresh daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Bangkok Don Mueang Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Bangkok Don Mueang Intl Airport.

  • What documentation or ID do you need to fly to Bangkok Don Mueang Intl Airport?

    The necessary travel and health documents for your Bangkok Don Mueang Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Seattle to Bangkok Don Mueang Intl Airport

  • How do I get Price Alerts for flights from Seattle to Bangkok Don Mueang Intl Airport?

    Confirm your travel details to search for the latest offers for flights from Seattle to Bangkok Don Mueang Intl Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Seattle to Bangkok Don Mueang Intl Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Bangkok?

Finding the right flight to Bangkok from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Bangkok quick and easy, saving you time and money.

Can I find flights from Seattle to Bangkok with flexible booking policies on momondo?

Flights from Seattle to Bangkok with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Bangkok?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bangkok from Seattle.

I’m not ready to book a flight from Seattle to Bangkok right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Bangkok from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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