How long is the flight from Thailand to Seattle?

For as low as ฿26,641, Korean Air can have you in Seattle from Thailand in 24h 39m. 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?

฿14,388 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 ฿15,593 and ฿15,804, 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, Chiang Mai - Seattle/Tacoma Intl and Bangkok Don Mueang Intl - 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 Philippine 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.

฿15,791+ 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 26 September 2026.

Sun 4/1011:45 -

1 stop17h 30m

Tue 6/1000:10 -

1 stop33h 25m

Deal found 26/9฿25,372

Thu 5/1109:50 -

1 stop19h 20m

Wed 25/1111:00 -

1 stop19h 30m

Deal found 25/9฿25,873

Fri 6/1100:20 -

1 stop23h 45m

Fri 4/1200:10 -

1 stop31h 35m

Deal found 23/9฿26,106

Mon 12/1002:35 -

1 stop22h 05m

Tue 27/1012:00 -

1 stop19h 30m

Deal found 21/9฿26,140

Tue 10/1100:20 -

1 stop23h 45m

Sun 6/1211:00 -

1 stop20h 45m

Deal found 23/9฿26,173

Mon 9/1100:20 -

1 stop28h 50m

Tue 17/1111:00 -

1 stop20h 45m

Deal found 26/9฿26,207

Tue 27/1001:05 -

1 stop23h 00m

Sat 5/1211:00 -

1 stop19h 30m

Deal found 21/9฿26,240

Tue 27/1023:15 -

1 stop24h 50m

Thu 3/1200:10 -

1 stop22h 15m

Deal found 21/9฿26,340

Thu 19/1123:15 -

1 stop24h 50m

Wed 6/100:10 -

1 stop22h 15m

Deal found 24/9฿26,440

Tue 3/1100:20 -

1 stop23h 45m

Tue 1/1200:10 -

1 stop31h 35m

Deal found 23/9฿26,474

Sun 1/1121:40 -

1 stop29h 11m

Wed 2/1212:35 -

1 stop19h 30m

Deal found 21/9฿26,607

Sun 8/1100:20 -

1 stop26h 31m

Sun 6/1212:35 -

1 stop19h 10m

Deal found 23/9฿26,641

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 26 September 2026.

Mon 9/1100:20 -

1 stop28h 50m

Tue 17/1111:00 -

1 stop20h 45m

Deal found 26/9฿26,207

Mon 19/1002:35 -

1 stop24h 39m

Wed 28/1013:30 -

1 stop19h 35m

Deal found 26/9฿26,641

Tue 13/1010:50 -

1 stop22h 25m

Mon 26/1001:10 -

1 stop25h 35m

Deal found 25/9฿27,141

Wed 3/307:10 -

2 stops23h 44m

Wed 10/315:45 -

1 stop22h 25m

Deal found 21/9฿27,742

Mon 14/1200:20 -

1 stop28h 50m

Mon 28/1200:10 -

1 stop31h 35m

Deal found 21/9฿26,741

Wed 7/1009:35 -

1 stop18h 50m

Sat 17/1019:25 -

2 stops24h 10m

Deal found 22/9฿27,909

Thu 17/1200:20 -

1 stop28h 50m

Wed 30/1200:10 -

1 stop31h 35m

Deal found 21/9฿26,741

Wed 18/1100:20 -

1 stop26h 31m

Fri 27/1117:30 -

2 stops38h 15m

Deal found 24/9฿30,246

Fri 6/1107:10 -

2 stops22h 29m

Fri 6/1116:39 -

2 stops51h 51m

Deal found 23/9฿28,210

Sat 7/1100:20 -

1 stop28h 50m

Thu 3/1211:00 -

1 stop20h 45m

Deal found 22/9฿26,741

Thu 5/1100:20 -

1 stop26h 31m

Tue 1/1221:20 -

2 stops34h 25m

Deal found 23/9฿30,346

Fri 20/1109:10 -

2 stops27h 40m

Wed 13/115:45 -

1 stop22h 25m

Deal found 24/9฿28,443

Wed 4/1100:20 -

1 stop23h 45m

Sun 8/1100:10 -

1 stop31h 35m

Deal found 24/9฿26,741

Wed 28/1009:10 -

2 stops25h 37m

Fri 4/1207:00 -

2 stops26h 20m

Deal found 21/9฿28,477

Wed 16/1200:20 -

1 stop23h 45m

Wed 30/1200:10 -

1 stop31h 35m

Deal found 21/9฿26,741

Sat 14/1100:20 -

1 stop28h 50m

Sun 6/1211:00 -

1 stop20h 45m

Deal found 22/9฿26,741

Wed 16/1200:20 -

1 stop28h 50m

Mon 28/1200:10 -

1 stop31h 35m

Deal found 21/9฿26,741

Tue 27/1001:05 -

1 stop23h 00m

Thu 3/1211:00 -

1 stop19h 30m

Deal found 21/9฿26,774

Sun 25/1001:05 -

1 stop23h 00m

Thu 3/1211:00 -

1 stop21h 05m

Deal found 21/9฿26,774

Wed 18/1100:20 -

1 stop28h 50m

Thu 26/1100:10 -

1 stop31h 35m

Deal found 24/9฿26,808

Sat 19/1209:50 -

1 stop19h 20m

Fri 1/100:10 -

1 stop31h 55m

Deal found 22/9฿26,841

Find flight deals from Thailand to Seattle

Round-trip from	฿25,472
One-way from	฿15,791
Popular in	August
Cheapest in	March
Average price	฿29,979

ไห่หนานแอร์ไลน์
6/11-14/11
2 total stops
59h 15m total
Thailand to Seattle

Search Deals

เดลต้า
18/11-31/12
1 total stop
26h 31m total
Thailand to Seattle

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (฿58,846 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (฿11,828 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 17/12

00:20-11:56

1 stop26h 36m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,791

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

฿15,791

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

฿15,824

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 12/11

00:20-09:05

1 stop23h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,891

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Sun 8/11

00:20-09:05

1 stop23h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,891

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Tue 3/11

00:20-09:05

1 stop23h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,891

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Fri 13/11

00:20-11:51

1 stop26h 31m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,891

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Wed 11/11

00:20-14:10

1 stop28h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,891

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 24/12

00:20-14:10

1 stop28h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,891

Fastest return journey

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 1/10

11:20-19:15

1 stop21h 55m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿16,058

Flights are sorted by cheapest return flights first.

Deals found on 25/9

Showing 1-10 of 39 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

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

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 ฿24,771). Flying from Thailand to Seattle in August is currently the most expensive (average of ฿33,418). 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 77 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

1,535 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

847 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

562 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

1,026 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 ฿26,641, Korean Air can have you in Seattle from Thailand in 24h 39m. 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?
฿14,388 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 ฿15,593 and ฿15,804, 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, Chiang Mai - Seattle/Tacoma Intl and Bangkok Don Mueang Intl - 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 ฿24,771). Flying from Thailand to Seattle in August is currently the most expensive (average of ฿33,418). 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฿21,435	Average฿22,986	FlexibilityNo cancel fee	On-time60%	Search Philippine Airlines flights
China Airlines	Cheapest฿22,288	Average฿29,063	FlexibilityNo cancel fee	On-time70%	Search China Airlines flights
Asiana Airlines	Cheapest฿22,382	Average฿24,330	FlexibilityNo cancel fee	On-time76%	Search Asiana Airlines flights
STARLUX Airlines	Cheapest฿23,998	Average฿30,062	FlexibilityNo cancel fee	On-timeN/A	Search STARLUX Airlines flights
EVA Air	Cheapest฿26,550	Average฿30,535	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 ฿15,791

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/11. 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 26 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 26 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 26 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 26 September 2026.

Last-minute flights from Thailand to SeattleDiscover last-minute flight deals from Thailand to Seattle. Data last updated 26 September 2026 and is based on user searches.

Discover last-minute flight deals from Thailand to Seattle. Data last updated 26 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 26 September 2026.

Search for one-way flight options from Thailand to Seattle. Find affordable one-way fares based on user searches. Data last updated 26 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 77 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 26 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 26 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 26 September 2026.

Last-minute flights from Thailand to Seattle
Discover last-minute flight deals from Thailand to Seattle. Data last updated 26 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 26 September 2026.