What airlines fly to Seattle?

Philippine Airlines, EVA Air and Korean Air are the top three most popular airlines that fly to Seattle from Thailand according to our data. Philippine Airlines is the first choice among our users, with 33% 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.

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 Chiang Mai to Seattle takes 15h 35m on average. On the other hand, flying from Bangkok to Seattle takes 21h 02m 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, Singapore Airlines, and China Airlines are the most popular carriers operating from Thailand to Seattle/Tacoma Intl

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 September 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.

$432 Cheap Flights from Thailand to Seattle in 2025

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Find the cheapest flights from Thailand to Seattle

Round-trip

One-way

Last minute

Recent round-trip flight deals from Thailand to Seattle

11:35 pm - 6:35 pmBKK-SEA

34h 00m1 stop

11:55 pm - 12:05 pmSEA-BKK

22h 10m1 stop

$681Philippine Airlines

Find Deal

Tue, Jan 20 - Fri, Apr 3

11:35 pm - 6:35 pmBKK-SEA

34h 00m1 stop

11:55 pm - 12:05 pmSEA-BKK

22h 10m1 stop

$691Philippine Airlines

Find Deal

Sat, Jan 17 - Fri, Apr 3

1:45 pm - 3:05 pmBKK-SEA

16h 20m1 stop

1:15 am - 12:00 pmSEA-BKK

20h 45m1 stop

$772STARLUX Airlines

Find Deal

Sun, Jan 18 - Mon, Mar 30

1:10 pm - 4:10 pmBKK-SEA

17h 00m1 stop

1:15 am - 4:40 pmSEA-BKK

25h 25m1 stop

$773STARLUX Airlines

Find Deal

Tue, Sep 16 - Tue, Oct 7

2:35 am - 10:40 amBKK-SEA

22h 05m1 stop

12:50 pm - 1:15 pmSEA-BKK

34h 25m1 stop

$807Korean Air

Find Deal

Mon, Oct 13 - Wed, Oct 22

12:55 am - 9:00 amBKK-SEA

23h 05m1 stop

11:00 am - 12:45 amSEA-BKK

22h 45m1 stop

$819Korean Air

Find Deal

Fri, Dec 19 - Fri, Jan 2

11:35 am - 7:30 pmCNX-SEA

21h 55m1 stop

12:50 am - 10:25 amSEA-CNX

19h 35m1 stop

$849EVA Air

Find Deal

Thu, Oct 2 - Tue, Jun 9

10:10 am - 6:10 pmCNX-SEA

23h 00m2 stops

12:10 am - 10:35 amSEA-CNX

19h 25m1 stop

$902EVA Air

Find Deal

Mon, Nov 10 - Thu, Dec 4

11:15 pm - 1:40 pmCNX-SEA

28h 25m1 stop

11:55 pm - 9:55 pmSEA-CNX

32h 00m2 stops

$982Delta

Find Deal

Wed, Sep 24 - Mon, Oct 6

11:15 pm - 1:40 pmCNX-SEA

28h 25m1 stop

11:55 pm - 9:55 pmSEA-CNX

32h 00m2 stops

$1,067Delta

Find Deal

Tue, Sep 23 - Mon, Oct 6

Asiana Airlines flights from Thailand to Seattle

Our best Asiana Airlines deals on Thailand to Seattle flight tickets

Asiana Airlines

Sep 25

BKK1:20 amBangkok Suvarnabhumi

25h 10m

1 stop

SEA12:30 pmSeattle/Tacoma Intl

Sep 28

SEA2:15 pmSeattle/Tacoma Intl

18h 55m

1 stop

BKK11:10 pmBangkok Suvarnabhumi

$778

Find similar

Asiana Airlines

Sep 17

BKK1:20 amBangkok Suvarnabhumi

25h 10m

1 stop

SEA12:30 pmSeattle/Tacoma Intl

Oct 27

SEA12:10 amSeattle/Tacoma Intl

21h 05m

1 stop

BKK11:15 amBangkok Suvarnabhumi

$892

Find similar

Asiana Airlines

Sep 17

BKK1:20 amBangkok Suvarnabhumi

25h 10m

1 stop

SEA12:30 pmSeattle/Tacoma Intl

Oct 27

SEA12:10 amSeattle/Tacoma Intl

21h 05m

1 stop

BKK11:15 amBangkok Suvarnabhumi

$914

Find similar

Air Canada flights from Thailand to Seattle

Our best Air Canada deals on Thailand to Seattle flight tickets

Air Canada

Feb 10

BKK8:15 amBangkok Suvarnabhumi

16h 16m

1 stop

SEA9:31 amSeattle/Tacoma Intl

Mar 10

SEA8:00 pmSeattle/Tacoma Intl

19h 30m

1 stop

BKK5:30 amBangkok Suvarnabhumi

$804

Find similar

Air Canada

Mar 2

BKK8:15 amBangkok Suvarnabhumi

16h 16m

1 stop

SEA9:31 amSeattle/Tacoma Intl

Mar 23

SEA8:00 pmSeattle/Tacoma Intl

19h 30m

1 stop

BKK5:30 amBangkok Suvarnabhumi

$820

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 1/20

11:35 pm-6:35 pm

1 stop34h 00m

Seattle/Tacoma Intl

Fri 4/3

11:55 pm-12:05 pm

1 stop22h 10m

$681

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 1/17

11:35 pm-6:35 pm

1 stop34h 00m

Seattle/Tacoma Intl

Fri 4/3

11:55 pm-12:05 pm

1 stop22h 10m

$691

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 1/18

1:45 pm-3:05 pm

1 stop16h 20m

Seattle/Tacoma Intl

Mon 3/30

1:15 am-12:00 pm

1 stop20h 45m

$772

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 9/16

1:10 pm-4:10 pm

1 stop17h 00m

Seattle/Tacoma Intl

Tue 10/7

1:15 am-4:40 pm

1 stop25h 25m

$773

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 10/13

2:35 am-10:40 am

1 stop22h 05m

Seattle/Tacoma Intl

Wed 10/22

12:50 pm-1:15 pm

1 stop34h 25m

$807

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 12/19

12:55 am-9:00 am

1 stop23h 05m

Seattle/Tacoma Intl

Fri 1/2

11:00 am-12:45 am

1 stop22h 45m

$819

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 10/2

11:35 am-7:30 pm

1 stop21h 55m

Seattle/Tacoma Intl

Tue 6/9

12:50 am-10:25 am

1 stop19h 35m

$849

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 11/10

10:10 am-6:10 pm

2 stops23h 00m

Seattle/Tacoma Intl

Thu 12/4

12:10 am-10:35 am

1 stop19h 25m

$902

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 9/24

11:15 pm-1:40 pm

1 stop28h 25m

Seattle/Tacoma Intl

Mon 10/6

11:55 pm-9:55 pm

2 stops32h 00m

$982

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 9/23

11:15 pm-1:40 pm

1 stop28h 25m

Seattle/Tacoma Intl

Mon 10/6

11:55 pm-9:55 pm

2 stops32h 00m

$1,067

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 $741. If you don’t want to visit Seattle in February, then you should wait until November to fly from Thailand, when ticket prices are also cheap, with an average price of $759.

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 $911 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 $738 on momondo.

Can stopping save me money on Thailand to Seattle flights?

You could potentially save up to 42% 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 September 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 $551	Free Cancellation	Rating 7.2 908 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $622	Free Cancellation	Rating 8.2 479 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $703	Free Cancellation	Rating 8.9 211 reviews	Search STARLUX Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 767 reviews	Search China Airlines flights
Korean Air	PriceFrom $801	Free Cancellation	Rating 8.4 1,135 reviews	Search Korean Air flights
Delta	PriceFrom $829	Free Cancellation	Rating 7.9 7,972 reviews	Search Delta flights
EVA Air	PriceFrom $831	Free Cancellation	Rating 8.4 1,235 reviews	Search EVA Air flights
ANA	PriceFrom $867	Free Cancellation	Rating 8.4 947 reviews	Search ANA flights
Japan Airlines	PriceFrom $922	Free Cancellation	Rating 8.3 1,555 reviews	Search Japan Airlines flights

Leavenworth

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SeaTac

Ocean Shores

Olympia

Renton

Lynnwood

Kent

Marysville

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Federal Way

Cle Elum

Tukwila

Kirkland

Lakewood

Centralia

Shoreline

Fife

Redmond

Westport

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.