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 31% 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.

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 20m 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

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 December 2025, 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.

$408 Cheap Flights from Thailand to Seattle in 2025/26

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Recent round-trip flight deals from Thailand to Seattle

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9:40 pm - 2:55 pm

BKK

SEA

31h 15m1 stop

12:10 am - 1:05 am

SEA

BKK

34h 55m1 stop

$625Multiple Airlines

Mon, Jun 1 - Tue, Sep 15

9:40 pm - 2:55 pm

BKK

SEA

31h 15m1 stop

12:10 am - 11:25 pm

SEA

BKK

33h 15m1 stop

$629Multiple Airlines

Mon, Jun 1 - Mon, Aug 31

11:40 pm - 8:05 pm

BKK

SEA

34h 25m1 stop

11:10 pm - 12:10 pm

SEA

BKK

23h 00m1 stop

$656Philippine Airlines

Mon, Jun 1 - Tue, Sep 1

11:50 pm - 6:40 pm

BKK

SEA

33h 50m1 stop

10:30 pm - 12:00 pm

SEA

BKK

23h 30m1 stop

$657Philippine Airlines

Tue, Mar 3 - Tue, Mar 24

10:10 am - 6:10 pm

CNX

SEA

23h 00m2 stops

12:10 am - 10:35 am

SEA

CNX

19h 25m1 stop

$824EVA Air

Wed, Feb 18 - Tue, Feb 24

12:15 am - 9:00 am

CNX

SEA

23h 45m1 stop

12:00 pm - 10:55 pm

SEA

CNX

20h 55m1 stop

$858Korean Air

Fri, Mar 6 - Mon, Mar 9

12:15 am - 9:00 am

CNX

SEA

23h 45m1 stop

12:00 pm - 10:55 pm

SEA

CNX

20h 55m1 stop

$859Korean Air

Fri, Mar 6 - Mon, Mar 9

9:40 pm - 5:30 pm

CNX

SEA

34h 50m2 stops

11:30 pm - 9:00 pm

SEA

CNX

30h 30m2 stops

$882EVA Air

Wed, Dec 24 - Tue, Dec 30

12:15 am - 9:00 am

CNX

SEA

23h 45m1 stop

11:46 am - 10:55 pm

SEA

CNX

45h 09m2 stops

$964Delta

Fri, Mar 6 - Mon, Mar 9

12:15 am - 9:00 am

CNX

SEA

23h 45m1 stop

10:15 pm - 10:55 pm

SEA

CNX

33h 40m2 stops

$967Delta

Tue, Dec 23 - Tue, Dec 30

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

23h 00m

1 stop

BKK12:10 pmBangkok Suvarnabhumi

$656

Find similar

Philippine Airlines

Mar 3

BKK11:50 pmBangkok Suvarnabhumi

33h 50m

1 stop

SEA6:40 pmSeattle/Tacoma Intl

Mar 24

SEA10:30 pmSeattle/Tacoma Intl

23h 30m

1 stop

BKK12:00 pmBangkok Suvarnabhumi

$657

Find similar

Philippine Airlines

Mar 3

BKK11:50 pmBangkok Suvarnabhumi

33h 50m

1 stop

SEA6:40 pmSeattle/Tacoma Intl

Mar 24

SEA10:30 pmSeattle/Tacoma Intl

34h 30m

1 stop

BKK11:00 pmBangkok Suvarnabhumi

$658

Find similar

ANA flights from Thailand to Seattle

Our best ANA deals on Thailand to Seattle flight tickets

ANA

May 12

BKK9:35 amBangkok Suvarnabhumi

23h 01m

2 stops

SEA6:36 pmSeattle/Tacoma Intl

Sep 1

SEA1:45 pmSeattle/Tacoma Intl

24h 50m

2 stops

BKK4:35 amBangkok Suvarnabhumi

$771

Find similar

ANA

Jun 1

BKK9:35 pmBangkok Suvarnabhumi

35h 01m

2 stops

SEA6:36 pmSeattle/Tacoma Intl

Sep 1

SEA1:45 pmSeattle/Tacoma Intl

35h 45m

2 stops

BKK3:30 pmBangkok Suvarnabhumi

$773

Find similar

ANA

May 22

BKK9:35 amBangkok Suvarnabhumi

18h 50m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Jun 2

SEA1:45 pmSeattle/Tacoma Intl

26h 15m

2 stops

BKK6:00 amBangkok Suvarnabhumi

$774

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 6/1

9:40 pm-2:55 pm

1 stop31h 15m

Seattle/Tacoma Intl

Tue 9/15

12:10 am-1:05 am

1 stop34h 55m

$625

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 6/1

9:40 pm-2:55 pm

1 stop31h 15m

Seattle/Tacoma Intl

Mon 8/31

12:10 am-11:25 pm

1 stop33h 15m

$629

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

$656

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 3/3

11:50 pm-6:40 pm

1 stop33h 50m

Seattle/Tacoma Intl

Tue 3/24

10:30 pm-12:00 pm

1 stop23h 30m

$657

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 2/18

10:10 am-6:10 pm

2 stops23h 00m

Seattle/Tacoma Intl

Tue 2/24

12:10 am-10:35 am

1 stop19h 25m

$824

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Fri 3/6

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Mon 3/9

12:00 pm-10:55 pm

1 stop20h 55m

$858

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Fri 3/6

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Mon 3/9

12:00 pm-10:55 pm

1 stop20h 55m

$859

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 12/24

9:40 pm-5:30 pm

2 stops34h 50m

Seattle/Tacoma Intl

Tue 12/30

11:30 pm-9:00 pm

2 stops30h 30m

$882

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Fri 3/6

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Mon 3/9

11:46 am-10:55 pm

2 stops45h 09m

$964

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 12/23

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Tue 12/30

10:15 pm-10:55 pm

2 stops33h 40m

$967

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 $815.

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 $903 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 21% 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

Fastest flight time	15h 20m
Direct flights	None

The fastest flight from Thailand to Seattle takes 15h 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 December 2025, 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 $591	Free Cancellation	Rating 7.3 941 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $651	Free Cancellation	Rating 8.2 490 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $705	Free Cancellation	Rating 8.9 243 reviews	Search STARLUX Airlines flights
EVA Air	PriceFrom $766	Free Cancellation	Rating 8.4 1,292 reviews	Search EVA Air flights
ANA	PriceFrom $781	Free Cancellation	Rating 8.4 1,017 reviews	Search ANA flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 787 reviews	Search China Airlines flights
Korean Air	PriceFrom $801	Free Cancellation	Rating 8.4 1,179 reviews	Search Korean Air flights
Delta	PriceFrom $829	Free Cancellation	Rating 7.9 8,011 reviews	Search Delta flights

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Lakewood

Fife

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Westport

Kirkland

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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.