Cheap flights from Thailand to Seattle from $413

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 1/29. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Thailand to Seattle

Recent round-trip flight deals from Thailand to Seattle

Multiple Airlines Logo
11:30 pm - 12:30 pmBKK-SEA
27h 00m1 stop
Multiple Airlines Logo
12:10 am - 12:45 amSEA-BKK
34h 35m1 stop
$658Multiple Airlines
Find Deal
vie., oct. 24 - jue., oct. 30
Philippine Airlines Logo
6:40 pm - 7:15 pmBKK-SEA
38h 35m1 stop
Philippine Airlines Logo
9:30 pm - 10:45 pmSEA-BKK
34h 15m1 stop
$659Philippine Airlines
Find Deal
jue., oct. 9 - mié., nov. 12
STARLUX Airlines Logo
1:10 pm - 4:10 pmBKK-SEA
17h 00m1 stop
STARLUX Airlines Logo
12:45 am - 4:30 pmSEA-BKK
25h 45m1 stop
$779STARLUX Airlines
Find Deal
mar., oct. 7 - mar., oct. 28
STARLUX Airlines Logo
5:50 pm - 4:05 pmBKK-SEA
36h 15m1 stop
STARLUX Airlines Logo
11:45 pm - 12:35 pmSEA-BKK
21h 50m1 stop
$780STARLUX Airlines
Find Deal
sáb., oct. 25 - mar., nov. 4
Korean Air Logo
12:15 am - 9:00 amCNX-SEA
23h 45m1 stop
Korean Air Logo
12:00 pm - 10:55 pmSEA-CNX
20h 55m1 stop
$835Korean Air
Find Deal
dom., mar. 1 - jue., mar. 12
Korean Air Logo
12:15 am - 9:00 amCNX-SEA
23h 45m1 stop
Korean Air Logo
12:00 pm - 10:55 pmSEA-CNX
20h 55m1 stop
$836Korean Air
Find Deal
dom., mar. 1 - sáb., mar. 14
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
$912EVA Air
Find Deal
lun., nov. 10 - jue., dic. 4
EVA Air Logo
11:50 am - 6:10 pmCNX-SEA
21h 20m1 stop
EVA Air Logo
11:50 pm - 1:45 pmSEA-CNX
23h 55m2 stops
$913EVA Air
Find Deal
mié., mar. 4 - jue., mar. 12
Delta Logo
12:15 am - 9:00 amCNX-SEA
23h 45m1 stop
Delta Logo
7:20 am - 10:55 pmSEA-CNX
25h 35m2 stops
$941Delta
Find Deal
dom., mar. 1 - jue., mar. 12
Delta Logo
12:15 am - 10:25 pmCNX-SEA
37h 10m2 stops
Delta Logo
8:10 pm - 10:55 pmSEA-CNX
36h 45m2 stops
$947Delta
Find Deal
dom., mar. 1 - lun., mar. 9

China Airlines flights from Thailand to Seattle

Our best China Airlines deals on Thailand to Seattle flight tickets
China Airlines
Oct 13
BKK2:40 amBangkok Suvarnabhumi
30h 40m
1 stop
SEA7:20 pmSeattle/Tacoma Intl
Oct 28
SEA1:10 amSeattle/Tacoma Intl
18h 40m
1 stop
BKK9:50 amBangkok Suvarnabhumi
China Airlines
Oct 13
BKK2:40 amBangkok Suvarnabhumi
30h 40m
1 stop
SEA7:20 pmSeattle/Tacoma Intl
Oct 20
SEA1:10 amSeattle/Tacoma Intl
21h 00m
1 stop
BKK12:10 pmBangkok Suvarnabhumi
China Airlines
Oct 24
BKK2:40 amBangkok Suvarnabhumi
30h 40m
1 stop
SEA7:20 pmSeattle/Tacoma Intl
Nov 3
SEA12:10 amSeattle/Tacoma Intl
34h 25m
1 stop
BKK1:35 amBangkok Suvarnabhumi

Korean Air flights from Thailand to Seattle

Our best Korean Air deals on Thailand to Seattle flight tickets
Korean Air
Mar 1
CNX12:15 amChiang Mai
23h 45m
1 stop
SEA9:00 amSeattle/Tacoma Intl
Mar 12
SEA12:00 pmSeattle/Tacoma Intl
20h 55m
1 stop
CNX10:55 pmChiang Mai
Korean Air
Mar 1
CNX12:15 amChiang Mai
23h 45m
1 stop
SEA9:00 amSeattle/Tacoma Intl
Mar 14
SEA12:00 pmSeattle/Tacoma Intl
20h 55m
1 stop
CNX10:55 pmChiang Mai
Korean Air
Sep 22
BKK2:35 amBangkok Suvarnabhumi
22h 05m
1 stop
SEA10:40 amSeattle/Tacoma Intl
Oct 29
SEA12:00 pmSeattle/Tacoma Intl
22h 45m
1 stop
BKK12:45 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 septiembre 16, 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

vie. 10/24

11:30 pm-12:30 pm

1 stop27h 00m

Seattle/Tacoma Intl

jue. 10/30

12:10 am-12:45 am

1 stop34h 35m

$658

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

jue. 10/9

6:40 pm-7:15 pm

1 stop38h 35m

Seattle/Tacoma Intl

mié. 11/12

9:30 pm-10:45 pm

1 stop34h 15m

$659

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

mar. 10/7

1:10 pm-4:10 pm

1 stop17h 00m

Seattle/Tacoma Intl

mar. 10/28

12:45 am-4:30 pm

1 stop25h 45m

$779

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

sáb. 10/25

5:50 pm-4:05 pm

1 stop36h 15m

Seattle/Tacoma Intl

mar. 11/4

11:45 pm-12:35 pm

1 stop21h 50m

$780

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

dom. 3/1

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

jue. 3/12

12:00 pm-10:55 pm

1 stop20h 55m

$835

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

dom. 3/1

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

sáb. 3/14

12:00 pm-10:55 pm

1 stop20h 55m

$836

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

lun. 11/10

10:10 am-6:10 pm

2 stops23h 00m

Seattle/Tacoma Intl

jue. 12/4

12:10 am-10:35 am

1 stop19h 25m

$912

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

mié. 3/4

11:50 am-6:10 pm

1 stop21h 20m

Seattle/Tacoma Intl

jue. 3/12

11:50 pm-1:45 pm

2 stops23h 55m

$913

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

dom. 3/1

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

jue. 3/12

7:20 am-10:55 pm

2 stops25h 35m

$941

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

dom. 3/1

12:15 am-10:25 pm

2 stops37h 10m

Seattle/Tacoma Intl

lun. 3/9

8:10 pm-10:55 pm

2 stops36h 45m

$947

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, November 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 $753. If you don’t want to visit Seattle in November, then you should wait until February to fly from Thailand, when ticket prices are also cheap, with an average price of $805.

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 $912 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 $806 on momondo.

Can stopping save me money on Thailand to Seattle flights?

You could potentially save up to 16% 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 $553Free CancellationRating
7.2
911 reviews
Search Philippine Airlines flights
Asiana AirlinesPriceFrom $622Free CancellationRating
8.2
480 reviews
Search Asiana Airlines flights
STARLUX AirlinesPriceFrom $705Free CancellationRating
9.0
214 reviews
Search STARLUX Airlines flights
China AirlinesPriceFrom $781Free CancellationRating
8.3
767 reviews
Search China Airlines flights
Korean AirPriceFrom $801Free CancellationRating
8.4
1,140 reviews
Search Korean Air flights
DeltaPriceFrom $829Free CancellationRating
7.9
7,957 reviews
Search Delta flights
EVA AirPriceFrom $831Free CancellationRating
8.4
1,236 reviews
Search EVA Air flights
ANAPriceFrom $867Free CancellationRating
8.4
963 reviews
Search ANA flights
Japan AirlinesPriceFrom $922Free CancellationRating
8.3
1,559 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
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Kirkland
Tukwila
Shoreline
Lakewood
Centralia
Fife
Cle Elum
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.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
jue. 10/16
jue. 10/23

Find better results for your trip to the United States