How long does it take to fly to Seattle?

Flight times vary depending on what airport in Thailand you fly out of and what airport in Seattle you fly into. For example, flying from Bangkok to Seattle takes 15h 55m on average. On the other hand, flying from Chiang Mai to Seattle takes 21h 20m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What is the cheapest airline that flies from Thailand to Seattle/Tacoma Intl?

Philippine Airlines, Hainan Airlines, and China Airlines are the most popular carriers operating from Thailand to Seattle/Tacoma Intl

What airlines fly to Seattle?

EVA Air, STARLUX Airlines and Philippine Airlines are the top three most popular airlines that fly to Seattle from Thailand according to our data. EVA Air is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 9 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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?

As of November 2025, there are 9 operators available to choose from 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.

$419 Cheap Flights from Thailand to Seattle in 2025/26

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Recent round-trip flight deals from Thailand to Seattle

Enter your travel dates to find the best prices.

11:50 pm - 7:40 pmBKK-SEA

33h 50m1 stop

11:05 pm - 4:45 pmSEA-BKK

27h 40m1 stop

$601Philippine Airlines

Find Deal

Tue, Mar 17 - Tue, Apr 7

1:30 pm - 8:10 pmBKK-SEA

20h 40m1 stop

11:05 pm - 9:50 pmSEA-BKK

32h 45m1 stop

$630Philippine Airlines

Find Deal

Tue, Mar 31 - Fri, Jun 5

11:50 pm - 6:40 pmBKK-SEA

33h 50m1 stop

10:30 pm - 12:00 pmSEA-BKK

23h 30m1 stop

$631Philippine Airlines

Find Deal

Tue, Mar 3 - Tue, Mar 24

1:05 am - 8:00 amBKK-SEA

21h 55m1 stop

11:00 am - 11:25 pmSEA-BKK

22h 25m1 stop

$639Hainan Airlines

Find Deal

Mon, Mar 2 - Tue, Mar 24

1:05 am - 9:00 amBKK-SEA

21h 55m1 stop

11:00 am - 11:00 pmSEA-BKK

22h 00m1 stop

$640Hainan Airlines

Find Deal

Mon, Mar 16 - Tue, Apr 7

4:15 pm - 9:00 amBKK-SEA

30h 45m1 stop

11:00 am - 11:25 pmSEA-BKK

22h 25m1 stop

$641Hainan Airlines

Find Deal

Mon, Mar 9 - Sat, Mar 14

6:25 am - 8:10 pmDMK-SEA

27h 45m2 stops

11:05 pm - 11:25 amSEA-DMK

22h 20m1 stop

$922Multiple Airlines

Find Deal

Sun, May 10 - Tue, May 19

10:10 am - 6:30 pmCNX-SEA

22h 20m2 stops

1:10 am - 1:45 pmSEA-CNX

46h 35m2 stops

$929EVA Air

Find Deal

Thu, Mar 26 - Sat, Mar 28

11:10 pm - 3:05 pmDMK-SEA

30h 55m2 stops

8:45 am - 11:00 pmSEA-DMK

23h 15m1 stop

$1,036Multiple Airlines

Find Deal

Thu, Jan 15 - Fri, Jan 30

4:45 pm - 8:10 amCNX-SEA

29h 25m1 stop

10:15 am - 4:40 pmSEA-CNX

40h 25m1 stop

$1,230Singapore Airlines

Find Deal

Thu, Mar 26 - Sun, Mar 29

China Airlines flights from Thailand to Seattle

Our best China Airlines deals on Thailand to Seattle flight tickets

China Airlines

Feb 9

BKK2:35 amBangkok Suvarnabhumi

30h 35m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

Mar 9

SEA1:10 amSeattle/Tacoma Intl

18h 40m

1 stop

BKK9:50 amBangkok Suvarnabhumi

$780

Find similar

China Airlines

Feb 9

BKK2:35 amBangkok Suvarnabhumi

30h 35m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

Mar 9

SEA1:10 amSeattle/Tacoma Intl

21h 55m

1 stop

BKK1:05 pmBangkok Suvarnabhumi

$781

Find similar

China Airlines

Mar 30

BKK2:40 amBangkok Suvarnabhumi

30h 50m

1 stop

SEA7:30 pmSeattle/Tacoma Intl

Jun 4

SEA1:10 amSeattle/Tacoma Intl

18h 35m

1 stop

BKK9:45 amBangkok Suvarnabhumi

$793

Find similar

ANA flights from Thailand to Seattle

Our best ANA deals on Thailand to Seattle flight tickets

ANA

May 10

BKK1:55 pmBangkok Suvarnabhumi

42h 41m

2 stops

SEA6:36 pmSeattle/Tacoma Intl

May 19

SEA1:45 pmSeattle/Tacoma Intl

24h 50m

2 stops

BKK4:35 amBangkok Suvarnabhumi

$774

Find similar

ANA

Nov 20

BKK10:25 pmBangkok Suvarnabhumi

29h 55m

1 stop

SEA1:20 pmSeattle/Tacoma Intl

Nov 30

SEA10:05 amSeattle/Tacoma Intl

29h 25m

2 stops

BKK6:30 amBangkok Suvarnabhumi

$885

Find similar

ANA

Nov 19

BKK7:10 amBangkok Suvarnabhumi

21h 28m

2 stops

SEA1:38 pmSeattle/Tacoma Intl

Nov 28

SEA10:05 amSeattle/Tacoma Intl

29h 25m

2 stops

BKK6:30 amBangkok Suvarnabhumi

$3,892

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 3/17

11:50 pm-7:40 pm

1 stop33h 50m

Seattle/Tacoma Intl

Tue 4/7

11:05 pm-4:45 pm

1 stop27h 40m

$601

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 3/31

1:30 pm-8:10 pm

1 stop20h 40m

Seattle/Tacoma Intl

Fri 6/5

11:05 pm-9:50 pm

1 stop32h 45m

$630

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 3/3

11:50 pm-6:40 pm

1 stop33h 50m

Seattle/Tacoma Intl

Tue 3/24

10:30 pm-12:00 pm

1 stop23h 30m

$631

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 3/2

1:05 am-8:00 am

1 stop21h 55m

Seattle/Tacoma Intl

Tue 3/24

11:00 am-11:25 pm

1 stop22h 25m

$639

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 3/16

1:05 am-9:00 am

1 stop21h 55m

Seattle/Tacoma Intl

Tue 4/7

11:00 am-11:00 pm

1 stop22h 00m

$640

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 3/9

4:15 pm-9:00 am

1 stop30h 45m

Seattle/Tacoma Intl

Sat 3/14

11:00 am-11:25 pm

1 stop22h 25m

$641

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Sun 5/10

6:25 am-8:10 pm

2 stops27h 45m

Seattle/Tacoma Intl

Tue 5/19

11:05 pm-11:25 am

1 stop22h 20m

$922

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 3/26

10:10 am-6:30 pm

2 stops22h 20m

Seattle/Tacoma Intl

Sat 3/28

1:10 am-1:45 pm

2 stops46h 35m

$929

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Thu 1/15

11:10 pm-3:05 pm

2 stops30h 55m

Seattle/Tacoma Intl

Fri 1/30

8:45 am-11:00 pm

1 stop23h 15m

$1,036

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 3/26

4:45 pm-8:10 am

1 stop29h 25m

Seattle/Tacoma Intl

Sun 3/29

10:15 am-4:40 pm

1 stop40h 25m

$1,230

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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 $806. If you don’t want to visit Seattle in November, then you should wait until October to fly from Thailand, when ticket prices are also cheap, with an average price of $815.

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 $901 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 $779 on momondo.

Can stopping save me money on Thailand to Seattle flights?

You could potentially save up to 17% 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.

Search flight deals

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?
As of November 2025, there are 9 operators available to choose from 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 Airlines	PriceFrom $594	Free Cancellation	Rating 7.3 937 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $651	Free Cancellation	Rating 8.2 487 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $705	Free Cancellation	Rating 8.9 230 reviews	Search STARLUX Airlines flights
EVA Air	PriceFrom $770	Free Cancellation	Rating 8.4 1,277 reviews	Search EVA Air flights
ANA	PriceFrom $781	Free Cancellation	Rating 8.4 1,007 reviews	Search ANA flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 780 reviews	Search China Airlines flights
Korean Air	PriceFrom $801	Free Cancellation	Rating 8.4 1,166 reviews	Search Korean Air flights
Delta	PriceFrom $829	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
Japan Airlines	PriceFrom $922	Free Cancellation	Rating 8.3 1,622 reviews	Search Japan Airlines flights

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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.