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 47m on average. On the other hand, flying from Chiang Mai to Seattle takes 21h 55m 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?

China Airlines, Delta, and Qatar Airways are the most popular carriers operating from Thailand to Seattle/Tacoma Intl

What airlines fly to Seattle?

STARLUX Airlines, EVA Air and Philippine Airlines are the top three most popular airlines that fly to Seattle from Thailand according to our data. STARLUX Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 7 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 March 2026, there are 7 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.

$448 Cheap Flights from Thailand to Seattle in 2026

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Round-trip

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Recent round-trip flight deals from Thailand to Seattle

Enter your travel dates to find the best prices.

7:30 pm - 8:05 pm

BKK

SEA

38h 35m

1 stop

11:10 pm - 6:30 pm

SEA

BKK

29h 20m

1 stop

$612Philippine Airlines

Mon, Jun 1 - Tue, Sep 1

7:30 pm - 8:05 pm

BKK

SEA

38h 35m

1 stop

11:10 pm - 8:55 am

SEA

BKK

19h 45m

1 stop

$615Philippine Airlines

Mon, Jun 1 - Tue, Sep 1

11:40 pm - 8:05 pm

BKK

SEA

34h 25m

1 stop

11:10 pm - 12:10 pm

SEA

BKK

23h 00m

1 stop

$617Philippine Airlines

Mon, Jun 1 - Tue, Sep 1

1:20 am - 2:55 pm

BKK

SEA

27h 35m

1 stop

12:55 am - 11:20 pm

SEA

BKK

32h 25m

1 stop

$650Asiana Airlines

Sun, May 31 - Tue, Sep 15

1:20 am - 2:55 pm

BKK

SEA

27h 35m

1 stop

12:55 am - 10:40 am

SEA

BKK

19h 45m

1 stop

$653Asiana Airlines

Sun, May 31 - Tue, Sep 15

11:20 am - 7:15 pm

CNX

SEA

21h 55m

1 stop

1:55 am - 10:20 am

SEA

CNX

18h 25m

1 stop

$778China Airlines

Mon, Jun 8 - Tue, Aug 18

5:20 pm - 4:10 pm

CNX

SEA

36h 50m

1 stop

1:15 am - 4:20 pm

SEA

CNX

25h 05m

1 stop

$801STARLUX Airlines

Sat, May 30 - Tue, Jul 28

11:35 am - 7:00 pm

CNX

SEA

21h 25m

1 stop

1:30 am - 10:25 am

SEA

CNX

18h 55m

1 stop

$812EVA Air

Tue, Sep 1 - Thu, Sep 17

5:20 pm - 4:10 pm

CNX

SEA

36h 50m

1 stop

1:15 am - 4:20 pm

SEA

CNX

25h 05m

1 stop

$831STARLUX Airlines

Thu, Sep 3 - Thu, Sep 17

8:00 pm - 7:30 pm

CNX

SEA

37h 30m

2 stops

12:50 am - 10:25 am

SEA

CNX

19h 35m

1 stop

$833EVA Air

Wed, May 13 - Tue, Jun 30

United Airlines flights from Thailand to Seattle

Our best United Airlines deals on Thailand to Seattle flight tickets

United Airlines

Jun 16

BKK9:35 amBangkok Suvarnabhumi

18h 50m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Aug 12

SEA4:30 pmSeattle/Tacoma Intl

22h 05m

1 stop

BKK4:35 amBangkok Suvarnabhumi

$673

United Airlines

Jun 12

BKK3:45 pmBangkok Suvarnabhumi

23h 44m

2 stops

SEA1:29 amSeattle/Tacoma Intl

Aug 18

SEA7:35 pmSeattle/Tacoma Intl

43h 00m

2 stops

BKK4:35 amBangkok Suvarnabhumi

$697

United Airlines

Apr 27

BKK9:35 amBangkok Suvarnabhumi

48h 10m

2 stops

SEA7:45 pmSeattle/Tacoma Intl

Jul 23

SEA4:30 pmSeattle/Tacoma Intl

22h 05m

1 stop

BKK4:35 amBangkok Suvarnabhumi

$700

ANA flights from Thailand to Seattle

Our best ANA deals on Thailand to Seattle flight tickets

ANA

Jul 1

BKK7:00 amBangkok Suvarnabhumi

25h 32m

2 stops

SEA6:32 pmSeattle/Tacoma Intl

Aug 12

SEA9:55 amSeattle/Tacoma Intl

24h 00m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

$693

ANA

Jul 1

BKK7:00 amBangkok Suvarnabhumi

25h 32m

2 stops

SEA6:32 pmSeattle/Tacoma Intl

Aug 12

SEA9:55 amSeattle/Tacoma Intl

24h 00m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

$695

ANA

Jul 1

BKK7:00 amBangkok Suvarnabhumi

25h 32m

2 stops

SEA6:32 pmSeattle/Tacoma Intl

Aug 12

SEA4:30 pmSeattle/Tacoma Intl

23h 25m

1 stop

BKK5:55 amBangkok Suvarnabhumi

$698

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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-6:30 pm

1 stop29h 20m

$612

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-8:55 am

1 stop19h 45m

$615

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-12:10 pm

1 stop23h 00m

$617

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 5/31

1:20 am-2:55 pm

1 stop27h 35m

Seattle/Tacoma Intl

Tue 9/15

12:55 am-11:20 pm

1 stop32h 25m

$650

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 5/31

1:20 am-2:55 pm

1 stop27h 35m

Seattle/Tacoma Intl

Tue 9/15

12:55 am-10:40 am

1 stop19h 45m

$653

Quickest round-trip

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 6/8

11:20 am-7:15 pm

1 stop21h 55m

Seattle/Tacoma Intl

Tue 8/18

1:55 am-10:20 am

1 stop18h 25m

$778

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 5/30

5:20 pm-4:10 pm

1 stop36h 50m

Seattle/Tacoma Intl

Tue 7/28

1:15 am-4:20 pm

1 stop25h 05m

$801

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 9/1

11:35 am-7:00 pm

1 stop21h 25m

Seattle/Tacoma Intl

Thu 9/17

1:30 am-10:25 am

1 stop18h 55m

$812

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 9/3

5:20 pm-4:10 pm

1 stop36h 50m

Seattle/Tacoma Intl

Thu 9/17

1:15 am-4:20 pm

1 stop25h 05m

$831

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 5/13

8:00 pm-7:30 pm

2 stops37h 30m

Seattle/Tacoma Intl

Tue 6/30

12:50 am-10:25 am

1 stop19h 35m

$833

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, March 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 $733. If you don’t want to visit Seattle in March, then you should wait until December to fly from Thailand, when ticket prices are also cheap, with an average price of $766.

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 $866 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 $764 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 45m
Direct flights	None

The fastest flight from Thailand to Seattle takes 16h 45m

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 March 2026, there are 7 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 7.3 967 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $655	Free Cancellation	Rating 8.1 506 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $705	Free Cancellation	Rating 8.9 281 reviews	Search STARLUX Airlines flights
EVA Air	PriceFrom $766	Free Cancellation	Rating 8.4 1,370 reviews	Search EVA Air flights
China Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 811 reviews	Search China Airlines flights
Korean Air	PriceFrom $799	Free Cancellation	Rating 8.4 1,202 reviews	Search Korean Air flights
Delta	PriceFrom $829	Free Cancellation	Rating 7.9 8,285 reviews	Search Delta flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Redmond

Marysville

Puyallup

Cle Elum

Lakewood

Tukwila

Federal Way

Fife

Westport

Centralia

Kirkland

Tumwater

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.