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 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 and Hainan 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.

$409 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.

2:05 am - 2:55 pmBKK-SEA

26h 50m1 stop

12:10 am - 12:55 amSEA-BKK

34h 45m1 stop

$620Multiple Airlines

Find Deal

Sat, Mar 14 - Mon, Mar 23

6:45 pm - 6:40 pmBKK-SEA

38h 55m1 stop

9:30 pm - 12:00 pmSEA-BKK

23h 30m1 stop

$630Philippine Airlines

Find Deal

Tue, Dec 9 - Wed, Dec 31

1:20 pm - 6:40 pmBKK-SEA

20h 20m1 stop

10:30 pm - 12:00 pmSEA-BKK

23h 30m1 stop

$652Philippine Airlines

Find Deal

Tue, Mar 3 - Tue, Mar 24

1:20 pm - 6:40 pmBKK-SEA

20h 20m1 stop

10:30 pm - 12:00 pmSEA-BKK

23h 30m1 stop

$655Philippine Airlines

Find Deal

Tue, Mar 3 - Tue, Mar 24

12:20 pm - 1:55 pmBKK-SEA

16h 35m1 stop

12:10 am - 11:15 amSEA-BKK

20h 05m1 stop

$767Asiana Airlines

Find Deal

Mon, Feb 9 - Sun, Feb 22

2:15 am - 7:10 pmBKK-SEA

30h 55m1 stop

11:50 pm - 10:45 amSEA-BKK

20h 55m1 stop

$769EVA Air

Find Deal

Sat, Mar 14 - Tue, Mar 24

11:50 am - 7:10 pmCNX-SEA

21h 20m1 stop

1:30 am - 10:25 amSEA-CNX

18h 55m1 stop

$770EVA Air

Find Deal

Wed, Mar 11 - Sun, Apr 5

2:35 am - 6:10 pmBKK-SEA

30h 35m1 stop

12:10 am - 4:45 pmSEA-BKK

25h 35m1 stop

$777China Airlines

Find Deal

Sat, Dec 20 - Sat, Dec 27

2:35 am - 6:10 pmBKK-SEA

30h 35m1 stop

1:10 am - 1:05 pmSEA-BKK

21h 55m1 stop

$779China Airlines

Find Deal

Mon, Feb 9 - Mon, Mar 9

4:55 pm - 4:05 pmCNX-SEA

37h 10m1 stop

6:15 pm - 4:20 pmSEA-CNX

32h 05m2 stops

$945STARLUX Airlines

Find Deal

Thu, Mar 12 - Tue, Apr 7

STARLUX Airlines flights from Thailand to Seattle

Our best STARLUX Airlines deals on Thailand to Seattle flight tickets

STARLUX Airlines

Mar 12

CNX4:55 pmChiang Mai

37h 10m

1 stop

SEA4:05 pmSeattle/Tacoma Intl

Apr 7

SEA6:15 pmSeattle/Tacoma Intl

32h 05m

2 stops

CNX4:20 pmChiang Mai

$945

Find similar

STARLUX Airlines

Nov 19

BKK1:45 pmBangkok Suvarnabhumi

16h 20m

1 stop

SEA3:05 pmSeattle/Tacoma Intl

Dec 3

SEA11:45 pmSeattle/Tacoma Intl

21h 50m

1 stop

BKK12:35 pmBangkok Suvarnabhumi

$1,659

Find similar

Philippine Airlines flights from Thailand to Seattle

Our best Philippine Airlines deals on Thailand to Seattle flight tickets

Philippine Airlines

Dec 9

BKK6:45 pmBangkok Suvarnabhumi

38h 55m

1 stop

SEA6:40 pmSeattle/Tacoma Intl

Dec 31

SEA9:30 pmSeattle/Tacoma Intl

23h 30m

1 stop

BKK12:00 pmBangkok Suvarnabhumi

$630

Find similar

Philippine Airlines

Mar 3

BKK1:20 pmBangkok Suvarnabhumi

20h 20m

1 stop

SEA6:40 pmSeattle/Tacoma Intl

Mar 24

SEA10:30 pmSeattle/Tacoma Intl

23h 30m

1 stop

BKK12:00 pmBangkok Suvarnabhumi

$652

Find similar

Philippine Airlines

Mar 3

BKK1:20 pmBangkok Suvarnabhumi

20h 20m

1 stop

SEA6:40 pmSeattle/Tacoma Intl

Mar 24

SEA10:30 pmSeattle/Tacoma Intl

23h 30m

1 stop

BKK12:00 pmBangkok Suvarnabhumi

$655

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 3/14

2:05 am-2:55 pm

1 stop26h 50m

Seattle/Tacoma Intl

Mon 3/23

12:10 am-12:55 am

1 stop34h 45m

$620

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 12/9

6:45 pm-6:40 pm

1 stop38h 55m

Seattle/Tacoma Intl

Wed 12/31

9:30 pm-12:00 pm

1 stop23h 30m

$630

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 3/3

1:20 pm-6:40 pm

1 stop20h 20m

Seattle/Tacoma Intl

Tue 3/24

10:30 pm-12:00 pm

1 stop23h 30m

$652

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 3/3

1:20 pm-6:40 pm

1 stop20h 20m

Seattle/Tacoma Intl

Tue 3/24

10:30 pm-12:00 pm

1 stop23h 30m

$655

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 2/9

12:20 pm-1:55 pm

1 stop16h 35m

Seattle/Tacoma Intl

Sun 2/22

12:10 am-11:15 am

1 stop20h 05m

$767

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 3/14

2:15 am-7:10 pm

1 stop30h 55m

Seattle/Tacoma Intl

Tue 3/24

11:50 pm-10:45 am

1 stop20h 55m

$769

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 3/11

11:50 am-7:10 pm

1 stop21h 20m

Seattle/Tacoma Intl

Sun 4/5

1:30 am-10:25 am

1 stop18h 55m

$770

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 12/20

2:35 am-6:10 pm

1 stop30h 35m

Seattle/Tacoma Intl

Sat 12/27

12:10 am-4:45 pm

1 stop25h 35m

$777

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 2/9

2:35 am-6:10 pm

1 stop30h 35m

Seattle/Tacoma Intl

Mon 3/9

1:10 am-1:05 pm

1 stop21h 55m

$779

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 3/12

4:55 pm-4:05 pm

1 stop37h 10m

Seattle/Tacoma Intl

Tue 4/7

6:15 pm-4:20 pm

2 stops32h 05m

$945

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, 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 $805. If you don’t want to visit Seattle in February, then you should wait until October to fly from Thailand, when ticket prices are also cheap, with an average price of $816.

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 $902 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 7.3 932 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $651	Free Cancellation	Rating 8.2 485 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $705	Free Cancellation	Rating 8.9 220 reviews	Search STARLUX Airlines flights
EVA Air	PriceFrom $770	Free Cancellation	Rating 8.4 1,272 reviews	Search EVA Air flights
ANA	PriceFrom $781	Free Cancellation	Rating 8.4 1,003 reviews	Search ANA flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 778 reviews	Search China Airlines flights
Korean Air	PriceFrom $801	Free Cancellation	Rating 8.4 1,160 reviews	Search Korean Air flights
Delta	PriceFrom $829	Free Cancellation	Rating 7.9 8,001 reviews	Search Delta flights
Japan Airlines	PriceFrom $922	Free Cancellation	Rating 8.3 1,604 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.