How long is the flight from Thailand to Seattle?

For as low as ฿26,584, Korean Air can have you in Seattle from Thailand in 17h. The distance from Thailand to Seattle is about 11978 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines to fly from Thailand to Seattle one-way?

฿14,304 is the cheapest one-way deal found within the past few days, from STARLUX Airlines. You may also be able to find cheap deals on Korean Air and China Airlines, with prices starting from ฿15,502 and ฿15,712, respectively.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What are the most popular routes from Thailand to Seattle?

The most popular flight routes from Thailand to Seattle are Bangkok Suvarnabhumi - Seattle/Tacoma Intl, Bangkok Don Mueang Intl - Seattle/Tacoma Intl and Chiang Mai - Seattle/Tacoma Intl.

What are the most popular airlines that fly from Thailand to Seattle?

When booking a flight from Thailand to Seattle, you may want to consider flying on EVA Air, Asiana Airlines or China Airlines as they are the most popular for this route.

What is the cheapest time of day to fly from TH to SEA?

When flying from Thailand to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Seattle from Thailand?

Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Thailand to Seattle. It is only a 18.4 km journey from Seattle/Tacoma Intl (SEA) to Seattle’s city centre.

Can I find deals for flights from Thailand to Seattle that include hotel bookings?

Yes. In addition to deals on Thailand to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Thailand to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Thailand to Seattle.

Can I find deals for business class flights from Thailand to Seattle?

Yes. Cheapflights offers flight deals from Thailand to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

฿13,939+ Cheap Flights from Thailand to Seattle

Cheap flight deals from Thailand to Seattle

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Thailand to Seattle
Explore the most affordable flight options available from Thailand to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2026.

Sun 4/1011:45 -

1 stop17h 30m

Tue 6/1000:10 -

1 stop33h 25m

Deal found 14/9฿25,290

Fri 30/1009:50 -

1 stop38h 15m

Fri 6/1111:00 -

1 stop19h 30m

Deal found 15/9฿25,887

Sun 25/1001:05 -

1 stop23h 00m

Mon 2/1111:00 -

1 stop22h 20m

Deal found 10/9฿26,053

Tue 27/1000:20 -

1 stop23h 45m

Thu 29/1012:00 -

1 stop20h 45m

Deal found 11/9฿26,120

Sun 13/911:45 -

1 stop17h 30m

Fri 25/900:10 -

1 stop20h 30m

Deal found 11/9฿26,186

Mon 21/1201:05 -

1 stop23h 00m

Sun 17/111:00 -

1 stop21h 05m

Deal found 11/9฿26,219

Mon 19/1000:20 -

1 stop22h 40m

Thu 12/1110:05 -

1 stop33h 35m

Deal found 15/9฿26,286

Fri 30/1016:20 -

1 stop31h 00m

Sat 7/1110:20 -

1 stop37h 00m

Deal found 11/9฿26,418

Sun 18/1023:30 -

1 stop27h 44m

Fri 13/1112:30 -

1 stop19h 35m

Deal found 15/9฿26,584

Mon 12/1002:35 -

1 stop24h 39m

Tue 27/1013:30 -

1 stop19h 35m

Deal found 12/9฿26,618

Tue 20/1009:50 -

1 stop17h 24m

Wed 28/1013:30 -

1 stop20h 50m

Deal found 11/9฿26,651

Wed 4/1100:20 -

1 stop23h 45m

Sun 8/1100:10 -

1 stop31h 35m

Deal found 11/9฿26,717

Best flights from Thailand to Seattle
Discover carefully curated flight deals from Thailand to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.

Tue 27/1000:20 -

1 stop23h 45m

Thu 29/1012:00 -

1 stop20h 45m

Deal found 11/9฿26,120

Sun 18/1023:30 -

1 stop27h 44m

Fri 13/1112:30 -

1 stop19h 35m

Deal found 13/9฿26,584

Tue 6/1009:35 -

2 stops27h 51m

Thu 15/1016:30 -

1 stop22h 05m

Deal found 10/9฿27,713

Thu 5/1111:25 -

1 stop21h 45m

Sun 8/1100:10 -

2 stops42h 15m

Deal found 14/9฿33,289

Wed 28/1012:10 -

2 stops21h 00m

Thu 29/1023:50 -

2 stops23h 55m

Deal found 12/9฿33,388

Wed 28/1010:10 -

2 stops19h 55m

Wed 28/1000:45 -

2 stops28h 15m

Deal found 14/9฿33,521

Wed 4/1123:00 -

1 stop28h 35m

Sun 8/1116:05 -

1 stop37h 05m

Deal found 13/9฿52,339

Mon 12/1002:35 -

1 stop24h 39m

Tue 27/1013:30 -

1 stop19h 35m

Deal found 12/9฿26,618

Wed 4/1100:20 -

1 stop23h 45m

Sun 8/1100:10 -

1 stop31h 35m

Deal found 14/9฿26,717

Tue 22/1216:55 -

2 stops44h 04m

Sun 17/115:45 -

1 stop22h 25m

Deal found 11/9฿28,045

Mon 12/1002:35 -

1 stop26h 40m

Mon 26/1000:10 -

1 stop34h 10m

Deal found 10/9฿26,883

Tue 2/209:10 -

1 stop19h 10m

Mon 22/216:30 -

2 stops28h 00m

Deal found 14/9฿28,211

Thu 22/1002:35 -

1 stop22h 05m

Fri 13/1121:20 -

2 stops34h 45m

Deal found 14/9฿30,069

Wed 3/209:10 -

1 stop19h 10m

Sat 20/210:45 -

3 stops33h 45m

Deal found 14/9฿28,211

Thu 5/1112:10 -

2 stops20h 20m

Sun 8/1100:10 -

2 stops27h 50m

Deal found 14/9฿34,815

Wed 7/1009:35 -

2 stops25h 26m

Sat 17/1019:25 -

2 stops24h 10m

Deal found 13/9฿28,841

Fri 30/1016:55 -

2 stops22h 04m

Fri 6/1115:40 -

1 stop22h 30m

Deal found 14/9฿30,069

Mon 1/211:25 -

1 stop21h 45m

Sat 17/401:15 -

1 stop19h 05m

Deal found 11/9฿45,137

Mon 1/211:25 -

1 stop21h 45m

Sat 17/401:15 -

2 stops22h 30m

Deal found 11/9฿48,954

Tue 22/1211:10 -

1 stop40h 25m

Sun 17/116:05 -

1 stop27h 00m

Deal found 11/9฿53,468

Tue 20/1012:10 -

1 stop39h 15m

Tue 10/1116:05 -

1 stop37h 05m

Deal found 14/9฿54,397

Mon 23/1111:10 -

1 stop40h 25m

Mon 7/1216:05 -

1 stop27h 00m

Deal found 15/9฿57,550

Sat 20/223:00 -

1 stop28h 35m

Sat 1/517:15 -

1 stop37h 20m

Deal found 11/9฿56,986

Sat 20/211:10 -

1 stop40h 25m

Tue 1/617:15 -

1 stop25h 20m

Deal found 11/9฿56,986

Thu 29/1011:10 -

2 stops45h 23m

Fri 6/1116:05 -

1 stop37h 05m

Deal found 11/9฿60,404

Tue 20/1012:10 -

2 stops44h 34m

Thu 12/1116:05 -

1 stop27h 00m

Deal found 15/9฿60,802

Sat 28/1108:55 -

1 stop42h 40m

Mon 28/1210:55 -

2 stops32h 10m

Deal found 11/9฿72,817

Find flight deals from Thailand to Seattle

Round-trip from	฿25,290
One-way from	฿13,939
Popular in	August
Cheapest in	March
Average price	฿28,078

Asiana Airlines
4/10-6/10
2 total stops
50h 55m total
Thailand to Seattle

Search Deals

27/10-31/12
2 total stops
57h 59m total
Thailand to Seattle

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (฿52,931 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (฿12,950 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 24/12

00:20-11:56

1 stop26h 36m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,798

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Wed 23/12

00:20-11:56

1 stop26h 36m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,831

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Wed 18/11

00:20-11:51

1 stop26h 31m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,831

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Mon 21/12

00:20-11:56

1 stop26h 36m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,831

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 24/12

00:20-09:05

1 stop23h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,864

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Mon 21/12

00:20-09:05

1 stop23h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,864

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Wed 18/11

00:20-14:10

1 stop28h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,864

Fastest return journey

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Wed 3/2

12:25-13:55

1 stop16h 30m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,898

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Thu 10/12

21:40-14:10

1 stop31h 30m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,898

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Sat 7/11

21:40-11:51

1 stop29h 11m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,898

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 55 resultsSorted by cheapest first

...

Best time to book a flight from Thailand to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Thailand with our price prediction graph.

BKK-SEA

CNX-SEA

DMK-SEA

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Thailand to Seattle

TH0-SEA

BKK-SEA

CNX-SEA

DMK-SEA

What is the cheapest month to book a flight from Thailand to Seattle?

Currently, March is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿24,626). Flying from Thailand to Seattle in August is currently the most expensive (average of ฿33,222). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How far ahead should I book a flight from Thailand to Seattle?

The price you pay for your flight from Thailand to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from Thailand to Seattle, such as STARLUX Airlines,EVA Air, andChina Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

STARLUX Airlines

8.7

Very Good

Check prices

Reviews

1 / 15

8.0

Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

STARLUX Airlines

8.7

Very Good

STARLUX Airlines

8.7

Very Good

Check prices

Reviews

1 / 15

8.0

Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

EVA Air

8.5

Very Good

1,526 reviews

STARLUX Airlines

8.7

Very Good

Check prices

Reviews

1 / 15

8.0

Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

China Airlines

8.3

Very Good

846 reviews

STARLUX Airlines

8.7

Very Good

Check prices

Reviews

1 / 15

8.0

Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

Asiana Airlines

8.1

Very Good

561 reviews

STARLUX Airlines

8.7

Very Good

Check prices

Reviews

1 / 15

8.0

Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

Philippine Airlines

7.3

Good

1,027 reviews

STARLUX Airlines

8.7

Very Good

Check prices

Reviews

1 / 15

8.0

Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

Related info for your journey

What airport do you fly into for flights to Seattle from Thailand?
Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Thailand to Seattle. It is only a 18.4 km journey from Seattle/Tacoma Intl (SEA) to Seattle’s city centre.
How long is the flight from Thailand to Seattle?
For as low as ฿26,584, Korean Air can have you in Seattle from Thailand in 17h. The distance from Thailand to Seattle is about 11978 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines to fly from Thailand to Seattle one-way?
฿14,304 is the cheapest one-way deal found within the past few days, from STARLUX Airlines. You may also be able to find cheap deals on Korean Air and China Airlines, with prices starting from ฿15,502 and ฿15,712, respectively.
What are the most popular routes from Thailand to Seattle?
The most popular flight routes from Thailand to Seattle are Bangkok Suvarnabhumi - Seattle/Tacoma Intl, Bangkok Don Mueang Intl - Seattle/Tacoma Intl and Chiang Mai - Seattle/Tacoma Intl.
Can I find deals for flights from Thailand to Seattle that include hotel bookings?
Yes. In addition to deals on Thailand to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Thailand to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Thailand to Seattle.
Can I find deals for business class flights from Thailand to Seattle?
Yes. Cheapflights offers flight deals from Thailand to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Thailand to Seattle?
Currently, March is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿24,626). Flying from Thailand to Seattle in August is currently the most expensive (average of ฿33,222). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Flights by cabin class

Other flight options

Popular flights

Alternative routes for Thailand to Seattle

Chiang Mai to Seattle flights

Chiang Mai to Portland flights

Top 5 airlines flying from Thailand to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Philippine Airlines	Cheapest฿21,310	Average฿22,851	FlexibilityNo cancel fee	On-time60%	Search Philippine Airlines flights
China Airlines	Cheapest฿22,157	Average฿26,762	FlexibilityNo cancel fee	On-time70%	Search China Airlines flights
Asiana Airlines	Cheapest฿22,251	Average฿24,188	FlexibilityNo cancel fee	On-time76%	Search Asiana Airlines flights
STARLUX Airlines	Cheapest฿23,857	Average฿29,886	FlexibilityNo cancel fee	On-timeN/A	Search STARLUX Airlines flights
EVA Air	Cheapest฿26,395	Average฿30,375	FlexibilityNo cancel fee	On-time74%	Search EVA Air flights

Fly with Cheapflights

How does Cheapflights help users find flights from Thailand to Seattle?

Cheapflights makes it easy to find Thailand to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Thailand to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Thailand.

Can Cheapflights find flights from Thailand to Seattle with no change fees?

Certainly. Search results for flights to Seattle from Thailand shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Thailand to Seattle become cheaper?

Yes! Start tracking prices for Thailand to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Thailand to Seattle from ฿13,939

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Thailand to Seattle

Cheapest flights from Thailand to SeattleExplore the most affordable flight options available from Thailand to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2026.

Explore the most affordable flight options available from Thailand to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2026.

Best flights from Thailand to SeattleDiscover carefully curated flight deals from Thailand to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.

Discover carefully curated flight deals from Thailand to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.

Last-minute flights from Thailand to SeattleDiscover last-minute flight deals from Thailand to Seattle. Data last updated 15 September 2026 and is based on user searches.

Discover last-minute flight deals from Thailand to Seattle. Data last updated 15 September 2026 and is based on user searches.

One-way flights from Thailand to SeattleSearch for one-way flight options from Thailand to Seattle. Find affordable one-way fares based on user searches. Data last updated 15 September 2026.

Search for one-way flight options from Thailand to Seattle. Find affordable one-way fares based on user searches. Data last updated 15 September 2026.

Find flight deals from Thailand to Seattle

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Thailand to Seattle that are best for you.

Best time to book a flight from Thailand to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Thailand with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Thailand to Seattle?

How far ahead should I book a flight from Thailand to Seattle?

The price you pay for your flight from Thailand to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from Thailand to Seattle, such as STARLUX Airlines,EVA Air, andChina Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly into for flights to Seattle from Thailand?

How long is the flight from Thailand to Seattle?

What are the cheapest airlines to fly from Thailand to Seattle one-way?

What are the most popular routes from Thailand to Seattle?

Can I find deals for flights from Thailand to Seattle that include hotel bookings?

How can I find direct flights from Thailand to Seattle?

Can I find deals for business class flights from Thailand to Seattle?

What is the cheapest month to book a flight from Thailand to Seattle?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Thailand to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Thailand to Seattle by cabin class

Find flights from Thailand to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Thailand and Seattle flights

Browse other Thailand and Seattle flight options. Last updated on 15 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top 5 airlines flying from Thailand to Seattle

Fly with Cheapflights

How does Cheapflights help users find flights from Thailand to Seattle?

Why should you use Cheapflights to find cheap flight tickets from Thailand to Seattle?

Can Cheapflights find flights from Thailand to Seattle with no change fees?

Can Cheapflights notify me if prices for flights from Thailand to Seattle become cheaper?

100% Free

Book With Flexibility

Travel Smart

Cheapest flights from Thailand to Seattle
Explore the most affordable flight options available from Thailand to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2026.

Best flights from Thailand to Seattle
Discover carefully curated flight deals from Thailand to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.

Last-minute flights from Thailand to Seattle
Discover last-minute flight deals from Thailand to Seattle. Data last updated 15 September 2026 and is based on user searches.

One-way flights from Thailand to Seattle
Search for one-way flight options from Thailand to Seattle. Find affordable one-way fares based on user searches. Data last updated 15 September 2026.