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 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.

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

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

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 17h 57m on average. On the other hand, flying from Chiang Mai to Seattle takes 21h 35m 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.

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.

$467 Cheap Flights from Thailand to Seattle in 2026

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Find the cheapest flights from Thailand to Seattle

Round-trip

One-way

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Recent round-trip flight deals from Thailand to Seattle

Enter your travel dates to find the best prices.

1:20 am - 2:55 pm

BKK

SEA

27h 35m

1 stop

12:55 am - 11:20 pm

SEA

BKK

32h 25m

1 stop

$686Asiana Airlines

Sun, Apr 26 - Sun, May 10

9:35 am - 2:25 pm

BKK

SEA

18h 50m

1 stop

8:45 am - 11:55 pm

SEA

BKK

25h 10m

2 stops

$687United Airlines

Tue, Jun 23 - Tue, Aug 4

7:00 am - 6:30 pm

BKK

SEA

25h 30m

2 stops

5:22 pm - 11:55 pm

SEA

BKK

40h 33m

2 stops

$688ANA

Fri, Jun 5 - Sat, Sep 5

1:25 pm - 8:05 pm

BKK

SEA

20h 40m

1 stop

11:10 pm - 8:55 am

SEA

BKK

19h 45m

1 stop

$689Philippine Airlines

Tue, Jun 23 - Tue, Aug 4

2:35 am - 1:25 pm

BKK

SEA

24h 50m

1 stop

1:05 pm - 1:05 am

SEA

BKK

22h 00m

1 stop

$690Delta

Mon, Jun 15 - Mon, Jun 29

11:35 pm - 2:25 pm

BKK

SEA

28h 50m

1 stop

3:45 pm - 6:30 am

SEA

BKK

23h 45m

1 stop

$691ANA

Sun, Jun 14 - Sat, Jan 9

1:20 am - 2:55 pm

BKK

SEA

27h 35m

1 stop

12:55 am - 10:40 am

SEA

BKK

19h 45m

1 stop

$692Asiana Airlines

Thu, Apr 23 - Mon, May 4

8:00 pm - 7:30 pm

CNX

SEA

37h 30m

2 stops

12:50 am - 10:25 am

SEA

CNX

19h 35m

1 stop

$831EVA Air

Wed, May 13 - Tue, Jun 30

8:00 pm - 7:30 pm

CNX

SEA

37h 30m

2 stops

12:50 am - 10:25 am

SEA

CNX

19h 35m

1 stop

$844EVA Air

Wed, May 13 - Tue, Jun 30

11:20 am - 7:15 pm

CNX

SEA

21h 55m

1 stop

1:55 am - 10:20 am

SEA

CNX

18h 25m

1 stop

$859China Airlines

Thu, Jun 18 - Mon, Aug 31

United Airlines flights from Thailand to Seattle

Our best United Airlines deals on Thailand to Seattle flight tickets

United Airlines

Jun 23

BKK9:35 amBangkok Suvarnabhumi

18h 50m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Aug 4

SEA8:45 amSeattle/Tacoma Intl

25h 10m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

$687

United Airlines

Jun 15

BKK3:45 pmBangkok Suvarnabhumi

23h 44m

2 stops

SEA1:29 amSeattle/Tacoma Intl

Jan 10

SEA6:29 amSeattle/Tacoma Intl

26h 51m

2 stops

BKK12:20 amBangkok Suvarnabhumi

$698

United Airlines

Jun 14

BKK9:35 amBangkok Suvarnabhumi

18h 50m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Jul 3

SEA3:33 pmSeattle/Tacoma Intl

47h 02m

2 stops

BKK4:35 amBangkok Suvarnabhumi

$824

ANA flights from Thailand to Seattle

Our best ANA deals on Thailand to Seattle flight tickets

ANA

Jun 5

BKK7:00 amBangkok Suvarnabhumi

25h 30m

2 stops

SEA6:30 pmSeattle/Tacoma Intl

Sep 5

SEA5:22 pmSeattle/Tacoma Intl

40h 33m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

$688

ANA

Jun 14

BKK11:35 pmBangkok Suvarnabhumi

28h 50m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Jan 9

SEA3:45 pmSeattle/Tacoma Intl

23h 45m

1 stop

BKK6:30 amBangkok Suvarnabhumi

$691

ANA

Jun 23

BKK7:00 amBangkok Suvarnabhumi

25h 32m

2 stops

SEA6:32 pmSeattle/Tacoma Intl

Aug 4

SEA8:45 amSeattle/Tacoma Intl

25h 10m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

$699

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 4/26

1:20 am-2:55 pm

1 stop27h 35m

Seattle/Tacoma Intl

Sun 5/10

12:55 am-11:20 pm

1 stop32h 25m

$686

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/23

9:35 am-2:25 pm

1 stop18h 50m

Seattle/Tacoma Intl

Tue 8/4

8:45 am-11:55 pm

2 stops25h 10m

$687

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 6/5

7:00 am-6:30 pm

2 stops25h 30m

Seattle/Tacoma Intl

Sat 9/5

5:22 pm-11:55 pm

2 stops40h 33m

$688

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/23

1:25 pm-8:05 pm

1 stop20h 40m

Seattle/Tacoma Intl

Tue 8/4

11:10 pm-8:55 am

1 stop19h 45m

$689

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 6/15

2:35 am-1:25 pm

1 stop24h 50m

Seattle/Tacoma Intl

Mon 6/29

1:05 pm-1:05 am

1 stop22h 00m

$690

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 6/14

11:35 pm-2:25 pm

1 stop28h 50m

Seattle/Tacoma Intl

Sat 1/9

3:45 pm-6:30 am

1 stop23h 45m

$691

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 4/23

1:20 am-2:55 pm

1 stop27h 35m

Seattle/Tacoma Intl

Mon 5/4

12:55 am-10:40 am

1 stop19h 45m

$692

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

$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

$844

Quickest round-trip

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 6/18

11:20 am-7:15 pm

1 stop21h 55m

Seattle/Tacoma Intl

Mon 8/31

1:55 am-10:20 am

1 stop18h 25m

$859

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 $742. 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 $867 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	17h 05m
Direct flights	None

The fastest flight from Thailand to Seattle takes 17h 05m

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 $625	Free Cancellation	Rating 7.3 970 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 9.0 292 reviews	Search STARLUX Airlines flights
EVA Air	PriceFrom $766	Free Cancellation	Rating 8.4 1,381 reviews	Search EVA Air flights
China Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 817 reviews	Search China Airlines flights
Korean Air	PriceFrom $799	Free Cancellation	Rating 8.4 1,205 reviews	Search Korean Air flights
Delta	PriceFrom $829	Free Cancellation	Rating 7.9 8,315 reviews	Search Delta flights

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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.