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Cheap flights from Thailand to Seattle from $501

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Thailand to Seattle departing on 10/1. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Thailand to Seattle

Recent round-trip flight deals from Thailand to Seattle

Enter your travel dates to find the best prices.
Asiana Airlines Logo
1:35 am - 3:15 pm
BKK
-
SEA
27h 40m
1 stop
Asiana Airlines Logo
12:10 am - 10:00 pm
SEA
-
BKK
31h 50m
1 stop
$785Asiana Airlines
Mon, Oct 19 - Tue, Oct 27
Asiana Airlines Logo
11:55 pm - 2:55 pm
BKK
-
SEA
29h 00m
1 stop
Asiana Airlines Logo
12:10 am - 10:00 pm
SEA
-
BKK
30h 50m
1 stop
$789Asiana Airlines
Sat, Oct 31 - Sun, Nov 29
Asiana Airlines Logo
1:35 am - 3:15 pm
BKK
-
SEA
27h 40m
1 stop
Asiana Airlines Logo
12:10 am - 10:00 pm
SEA
-
BKK
30h 50m
1 stop
$790Asiana Airlines
Wed, Oct 21 - Thu, Nov 5
Asiana Airlines Logo
11:45 am - 3:15 pm
BKK
-
SEA
17h 30m
1 stop
Asiana Airlines Logo
12:10 am - 10:00 pm
SEA
-
BKK
30h 50m
1 stop
$791Asiana Airlines
Thu, Oct 22 - Thu, Nov 5
Korean Air Logo
12:15 am - 9:00 am
CNX
-
SEA
23h 45m
1 stop
Korean Air Logo
11:00 am - 10:55 pm
SEA
-
CNX
20h 55m
1 stop
$818Korean Air
Sat, Nov 7 - Sun, Nov 29
Korean Air Logo
12:15 am - 9:00 am
CNX
-
SEA
23h 45m
1 stop
Korean Air Logo
11:00 am - 10:55 pm
SEA
-
CNX
20h 55m
1 stop
$821Korean Air
Wed, Nov 4 - Sun, Nov 29
China Airlines Logo
11:25 am - 6:10 pm
CNX
-
SEA
21h 45m
1 stop
China Airlines Logo
12:10 am - 10:25 am
SEA
-
CNX
19h 15m
1 stop
$883China Airlines
Thu, Nov 5 - Sun, Nov 29
STARLUX Airlines Logo
5:00 pm - 3:05 pm
CNX
-
SEA
37h 05m
1 stop
STARLUX Airlines Logo
11:45 pm - 4:00 pm
SEA
-
CNX
25h 15m
1 stop
$895STARLUX Airlines
Thu, Nov 5 - Tue, Dec 1
Delta Logo
12:15 am - 9:00 am
CNX
-
SEA
23h 45m
1 stop
Delta Logo
11:00 am - 10:55 pm
SEA
-
CNX
20h 55m
1 stop
$924Delta
Fri, Nov 6 - Tue, Dec 1
Delta Logo
12:15 am - 9:00 am
CNX
-
SEA
23h 45m
1 stop
Delta Logo
9:25 pm - 10:55 pm
SEA
-
CNX
34h 30m
2 stops
$925Delta
Fri, Nov 6 - Mon, Nov 30

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United Airlines flights from Thailand to Seattle

Our best United Airlines deals on Thailand to Seattle flight tickets
United Airlines
Jun 19
BKK7:00 amBangkok Suvarnabhumi
27h 53m
2 stops
SEA8:53 pmSeattle/Tacoma Intl
Jul 5
SEA4:30 pmSeattle/Tacoma Intl
22h 05m
1 stop
BKK4:35 amBangkok Suvarnabhumi
$796
United Airlines
Jun 15
BKK9:35 amBangkok Suvarnabhumi
18h 50m
1 stop
SEA2:25 pmSeattle/Tacoma Intl
Jan 10
SEA6:57 amSeattle/Tacoma Intl
37h 28m
2 stops
BKK11:25 amBangkok Suvarnabhumi
$807
United Airlines
Oct 6
BKK9:35 amBangkok Suvarnabhumi
25h 26m
2 stops
SEA9:01 pmSeattle/Tacoma Intl
Oct 15
SEA4:30 pmSeattle/Tacoma Intl
22h 05m
1 stop
BKK4:35 amBangkok Suvarnabhumi
$810

Korean Air flights from Thailand to Seattle

Our best Korean Air deals on Thailand to Seattle flight tickets
Korean Air
Nov 7
CNX12:15 amChiang Mai
23h 45m
1 stop
SEA9:00 amSeattle/Tacoma Intl
Nov 29
SEA11:00 amSeattle/Tacoma Intl
20h 55m
1 stop
CNX10:55 pmChiang Mai
$818
Korean Air
Nov 4
CNX12:15 amChiang Mai
23h 45m
1 stop
SEA9:00 amSeattle/Tacoma Intl
Nov 29
SEA11:00 amSeattle/Tacoma Intl
20h 55m
1 stop
CNX10:55 pmChiang Mai
$821

momondo Fare Finder

 
Customize your flight search to find flights from Thailand to Seattle 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 June 9, 2026.
Use the filters below to find and compare flights from Thailand to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 10/19

1:35 am-3:15 pm

1 stop27h 40m

Seattle/Tacoma Intl

Tue 10/27

12:10 am-10:00 pm

1 stop31h 50m

$785

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 10/31

11:55 pm-2:55 pm

1 stop29h 00m

Seattle/Tacoma Intl

Sun 11/29

12:10 am-10:00 pm

1 stop30h 50m

$789

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 10/21

1:35 am-3:15 pm

1 stop27h 40m

Seattle/Tacoma Intl

Thu 11/5

12:10 am-10:00 pm

1 stop30h 50m

$790

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 10/22

11:45 am-3:15 pm

1 stop17h 30m

Seattle/Tacoma Intl

Thu 11/5

12:10 am-10:00 pm

1 stop30h 50m

$791

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 11/7

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Sun 11/29

11:00 am-10:55 pm

1 stop20h 55m

$818

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 11/4

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Sun 11/29

11:00 am-10:55 pm

1 stop20h 55m

$821
Quickest round-trip

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 11/5

11:25 am-6:10 pm

1 stop21h 45m

Seattle/Tacoma Intl

Sun 11/29

12:10 am-10:25 am

1 stop19h 15m

$883

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 11/5

5:00 pm-3:05 pm

1 stop37h 05m

Seattle/Tacoma Intl

Tue 12/1

11:45 pm-4:00 pm

1 stop25h 15m

$895

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Fri 11/6

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Tue 12/1

11:00 am-10:55 pm

1 stop20h 55m

$924

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Fri 11/6

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Mon 11/30

9:25 pm-10:55 pm

2 stops34h 30m

$925

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Thailand to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from Thailand to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $515. If you don’t want to visit Seattle in October, then you should wait until February to fly from Thailand, when ticket prices are also cheap, with an average price of $591.

How far in advance should I book a flight from Thailand to Seattle?

You are more likely to see cheaper flights to Seattle from Thailand when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $870 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Thailand for as low as $733 on momondo.

Can stopping save me money on Thailand to Seattle flights?

You could potentially save up to 14% on your flight if you consider stops on a Thailand to Seattle flight.

Cheap Thailand to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Thailand to Seattle

Fastest flight time

16h 15m

Direct flights

None
The fastest flight from Thailand to Seattle takes 16h 15m
There are no direct flights from Thailand to Seattle. There are no popular flight routes from Thailand to Seattle.
Search flight deals

Frequently asked questions about flying from Thailand to Seattle

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

    Prices for flights from Thailand to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Thailand to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Thailand to Seattle/Tacoma 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 Thailand to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma 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.

Best airlines flying from Thailand to Seattle

Compare and see reviews for airlines that fly from Thailand to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Philippine AirlinesPriceFrom $625Free CancellationRating
7.3
999 reviews
Search Philippine Airlines flights
Asiana AirlinesPriceFrom $655Free CancellationRating
8.1
540 reviews
Search Asiana Airlines flights
STARLUX AirlinesPriceFrom $703Free CancellationRating
8.9
331 reviews
Search STARLUX Airlines flights
EVA AirPriceFrom $764Free CancellationRating
8.5
1,470 reviews
Search EVA Air flights
China AirlinesPriceFrom $774Free CancellationRating
8.3
828 reviews
Search China Airlines flights
Korean AirPriceFrom $793Free CancellationRating
8.4
1,218 reviews
Search Korean Air flights
DeltaPriceFrom $803Free CancellationRating
7.9
8,394 reviews
Search Delta flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Redmond
Kent
Lakewood
Tukwila
Puyallup
Marysville
Cle Elum
Federal Way
Fife
Centralia
Shoreline
Westport
Tumwater

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Thailand.

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

Flights from Thailand to Seattle 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 Thailand to Seattle?

momondo helps you find the best flight between Thailand and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Thailand to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

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