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 16h 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.

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

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

What airlines fly to Seattle?

Philippine Airlines, EVA Air and STARLUX Airlines 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 32% 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.

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.

$413 Cheap Flights from Thailand to Seattle in 2025/26

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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

11:30 pm - 12:30 pmBKK-SEA

27h 00m1 stop

12:10 am - 12:45 amSEA-BKK

34h 35m1 stop

$658Multiple Airlines

Find Deal

vie., oct. 24 - jue., oct. 30

6:40 pm - 7:15 pmBKK-SEA

38h 35m1 stop

9:30 pm - 10:45 pmSEA-BKK

34h 15m1 stop

$659Philippine Airlines

Find Deal

jue., oct. 9 - mié., nov. 12

1:10 pm - 4:10 pmBKK-SEA

17h 00m1 stop

12:45 am - 4:30 pmSEA-BKK

25h 45m1 stop

$779STARLUX Airlines

Find Deal

mar., oct. 7 - mar., oct. 28

5:50 pm - 4:05 pmBKK-SEA

36h 15m1 stop

11:45 pm - 12:35 pmSEA-BKK

21h 50m1 stop

$780STARLUX Airlines

Find Deal

sáb., oct. 25 - mar., nov. 4

12:15 am - 9:00 amCNX-SEA

23h 45m1 stop

12:00 pm - 10:55 pmSEA-CNX

20h 55m1 stop

$835Korean Air

Find Deal

dom., mar. 1 - jue., mar. 12

12:15 am - 9:00 amCNX-SEA

23h 45m1 stop

12:00 pm - 10:55 pmSEA-CNX

20h 55m1 stop

$836Korean Air

Find Deal

dom., mar. 1 - sáb., mar. 14

10:10 am - 6:10 pmCNX-SEA

23h 00m2 stops

12:10 am - 10:35 amSEA-CNX

19h 25m1 stop

$912EVA Air

Find Deal

lun., nov. 10 - jue., dic. 4

11:50 am - 6:10 pmCNX-SEA

21h 20m1 stop

11:50 pm - 1:45 pmSEA-CNX

23h 55m2 stops

$913EVA Air

Find Deal

mié., mar. 4 - jue., mar. 12

12:15 am - 9:00 amCNX-SEA

23h 45m1 stop

7:20 am - 10:55 pmSEA-CNX

25h 35m2 stops

$941Delta

Find Deal

dom., mar. 1 - jue., mar. 12

12:15 am - 10:25 pmCNX-SEA

37h 10m2 stops

8:10 pm - 10:55 pmSEA-CNX

36h 45m2 stops

$947Delta

Find Deal

dom., mar. 1 - lun., mar. 9

China Airlines flights from Thailand to Seattle

Our best China Airlines deals on Thailand to Seattle flight tickets

China Airlines

Oct 13

BKK2:40 amBangkok Suvarnabhumi

30h 40m

1 stop

SEA7:20 pmSeattle/Tacoma Intl

Oct 28

SEA1:10 amSeattle/Tacoma Intl

18h 40m

1 stop

BKK9:50 amBangkok Suvarnabhumi

$795

Find similar

China Airlines

Oct 13

BKK2:40 amBangkok Suvarnabhumi

30h 40m

1 stop

SEA7:20 pmSeattle/Tacoma Intl

Oct 20

SEA1:10 amSeattle/Tacoma Intl

21h 00m

1 stop

BKK12:10 pmBangkok Suvarnabhumi

$796

Find similar

China Airlines

Oct 24

BKK2:40 amBangkok Suvarnabhumi

30h 40m

1 stop

SEA7:20 pmSeattle/Tacoma Intl

Nov 3

SEA12:10 amSeattle/Tacoma Intl

34h 25m

1 stop

BKK1:35 amBangkok Suvarnabhumi

$797

Find similar

Korean Air flights from Thailand to Seattle

Our best Korean Air deals on Thailand to Seattle flight tickets

Korean Air

Mar 1

CNX12:15 amChiang Mai

23h 45m

1 stop

SEA9:00 amSeattle/Tacoma Intl

Mar 12

SEA12:00 pmSeattle/Tacoma Intl

20h 55m

1 stop

CNX10:55 pmChiang Mai

$835

Find similar

Korean Air

Mar 1

CNX12:15 amChiang Mai

23h 45m

1 stop

SEA9:00 amSeattle/Tacoma Intl

Mar 14

SEA12:00 pmSeattle/Tacoma Intl

20h 55m

1 stop

CNX10:55 pmChiang Mai

$836

Find similar

Korean Air

Sep 22

BKK2:35 amBangkok Suvarnabhumi

22h 05m

1 stop

SEA10:40 amSeattle/Tacoma Intl

Oct 29

SEA12:00 pmSeattle/Tacoma Intl

22h 45m

1 stop

BKK12:45 amBangkok Suvarnabhumi

$936

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

vie. 10/24

11:30 pm-12:30 pm

1 stop27h 00m

Seattle/Tacoma Intl

jue. 10/30

12:10 am-12:45 am

1 stop34h 35m

$658

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

jue. 10/9

6:40 pm-7:15 pm

1 stop38h 35m

Seattle/Tacoma Intl

mié. 11/12

9:30 pm-10:45 pm

1 stop34h 15m

$659

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

mar. 10/7

1:10 pm-4:10 pm

1 stop17h 00m

Seattle/Tacoma Intl

mar. 10/28

12:45 am-4:30 pm

1 stop25h 45m

$779

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

sáb. 10/25

5:50 pm-4:05 pm

1 stop36h 15m

Seattle/Tacoma Intl

mar. 11/4

11:45 pm-12:35 pm

1 stop21h 50m

$780

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

dom. 3/1

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

jue. 3/12

12:00 pm-10:55 pm

1 stop20h 55m

$835

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

dom. 3/1

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

sáb. 3/14

12:00 pm-10:55 pm

1 stop20h 55m

$836

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

lun. 11/10

10:10 am-6:10 pm

2 stops23h 00m

Seattle/Tacoma Intl

jue. 12/4

12:10 am-10:35 am

1 stop19h 25m

$912

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

mié. 3/4

11:50 am-6:10 pm

1 stop21h 20m

Seattle/Tacoma Intl

jue. 3/12

11:50 pm-1:45 pm

2 stops23h 55m

$913

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

dom. 3/1

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

jue. 3/12

7:20 am-10:55 pm

2 stops25h 35m

$941

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

dom. 3/1

12:15 am-10:25 pm

2 stops37h 10m

Seattle/Tacoma Intl

lun. 3/9

8:10 pm-10:55 pm

2 stops36h 45m

$947

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, November 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 $753. If you don’t want to visit Seattle in November, then you should wait until February to fly from Thailand, when ticket prices are also cheap, with an average price of $805.

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 $912 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 $806 on momondo.

Can stopping save me money on Thailand to Seattle flights?

You could potentially save up to 16% 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 $553	Free Cancellation	Rating 7.2 911 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $622	Free Cancellation	Rating 8.2 480 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $705	Free Cancellation	Rating 9.0 214 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 1,140 reviews	Search Korean Air flights
Delta	PriceFrom $829	Free Cancellation	Rating 7.9 7,957 reviews	Search Delta flights
EVA Air	PriceFrom $831	Free Cancellation	Rating 8.4 1,236 reviews	Search EVA Air flights
ANA	PriceFrom $867	Free Cancellation	Rating 8.4 963 reviews	Search ANA flights
Japan Airlines	PriceFrom $922	Free Cancellation	Rating 8.3 1,559 reviews	Search Japan Airlines flights

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Renton

Olympia

Lynnwood

Kent

Marysville

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Federal Way

Kirkland

Tukwila

Shoreline

Lakewood

Centralia

Fife

Cle Elum

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.