Cheap flights from Thailand to Seattle from $432

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 11/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Thailand to Seattle

Recent round-trip flight deals from Thailand to Seattle

Philippine Airlines Logo
11:35 pm - 6:35 pmBKK-SEA
34h 00m1 stop
Philippine Airlines Logo
11:55 pm - 12:05 pmSEA-BKK
22h 10m1 stop
$681Philippine Airlines
Find Deal
Tue, Jan 20 - Fri, Apr 3
Philippine Airlines Logo
11:35 pm - 6:35 pmBKK-SEA
34h 00m1 stop
Philippine Airlines Logo
11:55 pm - 12:05 pmSEA-BKK
22h 10m1 stop
$691Philippine Airlines
Find Deal
Sat, Jan 17 - Fri, Apr 3
STARLUX Airlines Logo
1:45 pm - 3:05 pmBKK-SEA
16h 20m1 stop
STARLUX Airlines Logo
1:15 am - 12:00 pmSEA-BKK
20h 45m1 stop
$772STARLUX Airlines
Find Deal
Sun, Jan 18 - Mon, Mar 30
STARLUX Airlines Logo
1:10 pm - 4:10 pmBKK-SEA
17h 00m1 stop
STARLUX Airlines Logo
1:15 am - 4:40 pmSEA-BKK
25h 25m1 stop
$773STARLUX Airlines
Find Deal
Tue, Sep 16 - Tue, Oct 7
Korean Air Logo
2:35 am - 10:40 amBKK-SEA
22h 05m1 stop
Korean Air Logo
12:50 pm - 1:15 pmSEA-BKK
34h 25m1 stop
$807Korean Air
Find Deal
Mon, Oct 13 - Wed, Oct 22
Korean Air Logo
12:55 am - 9:00 amBKK-SEA
23h 05m1 stop
Korean Air Logo
11:00 am - 12:45 amSEA-BKK
22h 45m1 stop
$819Korean Air
Find Deal
Fri, Dec 19 - Fri, Jan 2
EVA Air Logo
11:35 am - 7:30 pmCNX-SEA
21h 55m1 stop
EVA Air Logo
12:50 am - 10:25 amSEA-CNX
19h 35m1 stop
$849EVA Air
Find Deal
Thu, Oct 2 - Tue, Jun 9
EVA Air Logo
10:10 am - 6:10 pmCNX-SEA
23h 00m2 stops
EVA Air Logo
12:10 am - 10:35 amSEA-CNX
19h 25m1 stop
$902EVA Air
Find Deal
Mon, Nov 10 - Thu, Dec 4
Delta Logo
11:15 pm - 1:40 pmCNX-SEA
28h 25m1 stop
Delta Logo
11:55 pm - 9:55 pmSEA-CNX
32h 00m2 stops
$982Delta
Find Deal
Wed, Sep 24 - Mon, Oct 6
Delta Logo
11:15 pm - 1:40 pmCNX-SEA
28h 25m1 stop
Delta Logo
11:55 pm - 9:55 pmSEA-CNX
32h 00m2 stops
$1,067Delta
Find Deal
Tue, Sep 23 - Mon, Oct 6

Asiana Airlines flights from Thailand to Seattle

Our best Asiana Airlines deals on Thailand to Seattle flight tickets
Asiana Airlines
Sep 25
BKK1:20 amBangkok Suvarnabhumi
25h 10m
1 stop
SEA12:30 pmSeattle/Tacoma Intl
Sep 28
SEA2:15 pmSeattle/Tacoma Intl
18h 55m
1 stop
BKK11:10 pmBangkok Suvarnabhumi
Asiana Airlines
Sep 17
BKK1:20 amBangkok Suvarnabhumi
25h 10m
1 stop
SEA12:30 pmSeattle/Tacoma Intl
Oct 27
SEA12:10 amSeattle/Tacoma Intl
21h 05m
1 stop
BKK11:15 amBangkok Suvarnabhumi
Asiana Airlines
Sep 17
BKK1:20 amBangkok Suvarnabhumi
25h 10m
1 stop
SEA12:30 pmSeattle/Tacoma Intl
Oct 27
SEA12:10 amSeattle/Tacoma Intl
21h 05m
1 stop
BKK11:15 amBangkok Suvarnabhumi

Air Canada flights from Thailand to Seattle

Our best Air Canada deals on Thailand to Seattle flight tickets
Air Canada
Feb 10
BKK8:15 amBangkok Suvarnabhumi
16h 16m
1 stop
SEA9:31 amSeattle/Tacoma Intl
Mar 10
SEA8:00 pmSeattle/Tacoma Intl
19h 30m
1 stop
BKK5:30 amBangkok Suvarnabhumi
Air Canada
Mar 2
BKK8:15 amBangkok Suvarnabhumi
16h 16m
1 stop
SEA9:31 amSeattle/Tacoma Intl
Mar 23
SEA8:00 pmSeattle/Tacoma Intl
19h 30m
1 stop
BKK5:30 amBangkok Suvarnabhumi

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 September 3, 2025.
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

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 1/20

11:35 pm-6:35 pm

1 stop34h 00m

Seattle/Tacoma Intl

Fri 4/3

11:55 pm-12:05 pm

1 stop22h 10m

$681

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 1/17

11:35 pm-6:35 pm

1 stop34h 00m

Seattle/Tacoma Intl

Fri 4/3

11:55 pm-12:05 pm

1 stop22h 10m

$691

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 1/18

1:45 pm-3:05 pm

1 stop16h 20m

Seattle/Tacoma Intl

Mon 3/30

1:15 am-12:00 pm

1 stop20h 45m

$772

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 9/16

1:10 pm-4:10 pm

1 stop17h 00m

Seattle/Tacoma Intl

Tue 10/7

1:15 am-4:40 pm

1 stop25h 25m

$773

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 10/13

2:35 am-10:40 am

1 stop22h 05m

Seattle/Tacoma Intl

Wed 10/22

12:50 pm-1:15 pm

1 stop34h 25m

$807

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 12/19

12:55 am-9:00 am

1 stop23h 05m

Seattle/Tacoma Intl

Fri 1/2

11:00 am-12:45 am

1 stop22h 45m

$819

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 10/2

11:35 am-7:30 pm

1 stop21h 55m

Seattle/Tacoma Intl

Tue 6/9

12:50 am-10:25 am

1 stop19h 35m

$849

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 11/10

10:10 am-6:10 pm

2 stops23h 00m

Seattle/Tacoma Intl

Thu 12/4

12:10 am-10:35 am

1 stop19h 25m

$902

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 9/24

11:15 pm-1:40 pm

1 stop28h 25m

Seattle/Tacoma Intl

Mon 10/6

11:55 pm-9:55 pm

2 stops32h 00m

$982

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 9/23

11:15 pm-1:40 pm

1 stop28h 25m

Seattle/Tacoma Intl

Mon 10/6

11:55 pm-9:55 pm

2 stops32h 00m

$1,067

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, February 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 $741. If you don’t want to visit Seattle in February, then you should wait until November to fly from Thailand, when ticket prices are also cheap, with an average price of $759.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Thailand is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $960. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Thailand because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,014.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Thailand at noon is the least expensive time of day to depart. momondo users have found prices as low as $651 when looking at flights departing at noon. Flights to Seattle are more costly in the afternoon, with an average ticket price of $1,039. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight 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 $911 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 $738 on momondo.

Can stopping save me money on Thailand to Seattle flights?

You could potentially save up to 42% 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

Direct flights

None
There are no direct flights from Thailand to Seattle. There are no popular flight routes 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 $551Free CancellationRating
7.2
908 reviews
Search Philippine Airlines flights
Asiana AirlinesPriceFrom $622Free CancellationRating
8.2
479 reviews
Search Asiana Airlines flights
STARLUX AirlinesPriceFrom $703Free CancellationRating
8.9
211 reviews
Search STARLUX Airlines flights
China AirlinesPriceFrom $781Free CancellationRating
8.3
767 reviews
Search China Airlines flights
Korean AirPriceFrom $801Free CancellationRating
8.4
1,135 reviews
Search Korean Air flights
DeltaPriceFrom $829Free CancellationRating
7.9
7,972 reviews
Search Delta flights
EVA AirPriceFrom $831Free CancellationRating
8.4
1,235 reviews
Search EVA Air flights
ANAPriceFrom $867Free CancellationRating
8.4
947 reviews
Search ANA flights
Japan AirlinesPriceFrom $922Free CancellationRating
8.3
1,555 reviews
Search Japan Airlines flights

Traveling to a place near Seattle?

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

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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1 adult
Mon 9/8
Mon 9/15

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