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 16h 20m on average. On the other hand, flying from Chiang Mai to Seattle takes 21h 45m 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 STARLUX Airlines are the most popular carriers operating from Thailand to Seattle/Tacoma Intl

What airlines fly to Seattle?

EVA Air, STARLUX Airlines and Delta 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 8 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 January 2026, there are 8 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.

$427 Cheap Flights from Thailand to Seattle in 2026

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Find the cheapest flights from Thailand to Seattle

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Recent round-trip flight deals from Thailand to Seattle

Enter your travel dates to find the best prices.

1:05 am - 9:00 am

BKK

SEA

21h 55m

1 stop

11:00 am - 12:20 pm

SEA

BKK

35h 20m

1 stop

$641Hainan Airlines

Mon, Mar 16 - Tue, Apr 7

1:05 am - 9:00 am

BKK

SEA

21h 55m

1 stop

11:00 am - 12:20 pm

SEA

BKK

35h 20m

1 stop

$642Hainan Airlines

Mon, Mar 16 - Tue, Apr 7

2:05 am - 1:55 pm

BKK

SEA

26h 50m

1 stop

12:10 am - 12:55 am

SEA

BKK

33h 45m

1 stop

$645Multiple Airlines

Thu, Feb 12 - Sat, Feb 28

11:40 pm - 8:05 pm

BKK

SEA

34h 25m

1 stop

11:10 pm - 6:30 pm

SEA

BKK

29h 20m

1 stop

$664Philippine Airlines

Mon, Jun 1 - Tue, Sep 1

7:30 pm - 8:05 pm

BKK

SEA

38h 35m

1 stop

11:10 pm - 10:40 pm

SEA

BKK

33h 30m

1 stop

$666Philippine Airlines

Mon, Jun 1 - Tue, Sep 1

5:20 pm - 4:10 pm

CNX

SEA

36h 50m

1 stop

1:15 am - 4:20 pm

SEA

CNX

25h 05m

1 stop

$789STARLUX Airlines

Tue, Apr 21 - Tue, May 12

11:20 am - 7:15 pm

CNX

SEA

21h 55m

1 stop

1:15 am - 10:20 am

SEA

CNX

19h 05m

1 stop

$793China Airlines

Mon, Apr 20 - Sat, May 16

11:20 am - 7:15 pm

CNX

SEA

21h 55m

1 stop

1:15 am - 10:20 am

SEA

CNX

19h 05m

1 stop

$794China Airlines

Thu, Apr 23 - Thu, May 21

11:50 am - 7:10 pm

CNX

SEA

21h 20m

1 stop

1:30 am - 10:25 am

SEA

CNX

18h 55m

1 stop

$810EVA Air

Thu, Mar 26 - Wed, Apr 29

11:50 am - 7:10 pm

CNX

SEA

21h 20m

1 stop

1:30 am - 10:25 am

SEA

CNX

18h 55m

1 stop

$811EVA Air

Thu, Mar 26 - Wed, Apr 29

Asiana Airlines flights from Thailand to Seattle

Our best Asiana Airlines deals on Thailand to Seattle flight tickets

Asiana Airlines

Mar 30

BKK1:20 amBangkok Suvarnabhumi

27h 35m

1 stop

SEA2:55 pmSeattle/Tacoma Intl

Jun 4

SEA12:55 amSeattle/Tacoma Intl

32h 15m

1 stop

BKK11:10 pmBangkok Suvarnabhumi

$653

Asiana Airlines

Mar 30

BKK1:20 amBangkok Suvarnabhumi

27h 35m

1 stop

SEA2:55 pmSeattle/Tacoma Intl

Jun 4

SEA12:55 amSeattle/Tacoma Intl

32h 15m

1 stop

BKK11:10 pmBangkok Suvarnabhumi

$655

Asiana Airlines

Feb 12

BKK11:55 pmBangkok Suvarnabhumi

29h 00m

1 stop

SEA1:55 pmSeattle/Tacoma Intl

Feb 18

SEA12:10 amSeattle/Tacoma Intl

20h 05m

1 stop

BKK11:15 amBangkok Suvarnabhumi

$663

Philippine Airlines flights from Thailand to Seattle

Our best Philippine Airlines deals on Thailand to Seattle flight tickets

Philippine Airlines

Jun 1

BKK11:40 pmBangkok Suvarnabhumi

34h 25m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

Sep 1

SEA11:10 pmSeattle/Tacoma Intl

29h 20m

1 stop

BKK6:30 pmBangkok Suvarnabhumi

$664

Philippine Airlines

Jun 1

BKK7:30 pmBangkok Suvarnabhumi

38h 35m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

Sep 1

SEA11:10 pmSeattle/Tacoma Intl

33h 30m

1 stop

BKK10:40 pmBangkok Suvarnabhumi

$666

Philippine Airlines

May 5

BKK1:25 pmBangkok Suvarnabhumi

20h 40m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

May 15

SEA11:10 pmSeattle/Tacoma Intl

33h 30m

1 stop

BKK10:40 pmBangkok Suvarnabhumi

$667

Fly from

Fly to

Route

Depart

Return

Price

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-12:20 pm

1 stop35h 20m

$641

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-12:20 pm

1 stop35h 20m

$642

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 2/12

2:05 am-1:55 pm

1 stop26h 50m

Seattle/Tacoma Intl

Sat 2/28

12:10 am-12:55 am

1 stop33h 45m

$645

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 6/1

11:40 pm-8:05 pm

1 stop34h 25m

Seattle/Tacoma Intl

Tue 9/1

11:10 pm-6:30 pm

1 stop29h 20m

$664

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 6/1

7:30 pm-8:05 pm

1 stop38h 35m

Seattle/Tacoma Intl

Tue 9/1

11:10 pm-10:40 pm

1 stop33h 30m

$666

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 4/21

5:20 pm-4:10 pm

1 stop36h 50m

Seattle/Tacoma Intl

Tue 5/12

1:15 am-4:20 pm

1 stop25h 05m

$789

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 4/20

11:20 am-7:15 pm

1 stop21h 55m

Seattle/Tacoma Intl

Sat 5/16

1:15 am-10:20 am

1 stop19h 05m

$793

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 4/23

11:20 am-7:15 pm

1 stop21h 55m

Seattle/Tacoma Intl

Thu 5/21

1:15 am-10:20 am

1 stop19h 05m

$794

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 3/26

11:50 am-7:10 pm

1 stop21h 20m

Seattle/Tacoma Intl

Wed 4/29

1:30 am-10:25 am

1 stop18h 55m

$810

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 3/26

11:50 am-7:10 pm

1 stop21h 20m

Seattle/Tacoma Intl

Wed 4/29

1:30 am-10:25 am

1 stop18h 55m

$811

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, December 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 $766. If you don’t want to visit Seattle in December, then you should wait until October to fly from Thailand, when ticket prices are also cheap, with an average price of $815.

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 $894 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.

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 20m
Direct flights	None

The fastest flight from Thailand to Seattle takes 16h 20m

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 January 2026, there are 8 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 $624	Free Cancellation	Rating 7.3 954 reviews	Search Philippine Airlines flights
STARLUX Airlines	PriceFrom $705	Free Cancellation	Rating 8.9 263 reviews	Search STARLUX Airlines flights
Asiana Airlines	PriceFrom $750	Free Cancellation	Rating 8.1 502 reviews	Search Asiana Airlines flights
EVA Air	PriceFrom $766	Free Cancellation	Rating 8.4 1,321 reviews	Search EVA Air flights
ANA	PriceFrom $768	Free Cancellation	Rating 8.4 1,072 reviews	Search ANA flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 798 reviews	Search China Airlines flights
Korean Air	PriceFrom $803	Free Cancellation	Rating 8.4 1,187 reviews	Search Korean Air flights
Delta	PriceFrom $829	Free Cancellation	Rating 7.9 8,049 reviews	Search Delta flights

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Lynnwood

Kent

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Federal Way

Fife

Kirkland

Westport

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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.