How long is the flight from Bangkok to Seattle?

Korean Air, United Airlines, and Emirates can get you from Bangkok to Seattle in just under 18h 50m. Your travel time can differ by up to 9h 45m. Bangkok and Seattle are separated by a distance of 11978 km. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines flying from Bangkok to Seattle round-trip?

According to our current data, Philippine Airlines (฿20,954), China Airlines (฿21,787), and Asiana Airlines (฿21,879) offers the cheapest pricing from Bangkok to Seattle. Philippine Airlines is priced at 26% lower than the current average price of a flight leaving 3 months from now.

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

One-way options have recently been found by users for as low as ฿14,065 on STARLUX Airlines. Other airlines that offer cheap prices include China Airlines from ฿15,449 and Qatar Airways from ฿16,771 one-way.

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 airlines that fly from Bangkok to Seattle?

EVA Air, Asiana Airlines and เดลต้า are the most popular airlines when flying from Bangkok to Seattle.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bangkok to Seattle as you normally would.

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

Located just 18.4 km from the city centre, Seattle/Tacoma Intl is the airport most travellers will use when flying to Seattle from Bangkok. Booking flights from Bangkok to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 0 daily inbound flights from Bangkok from 6 different airlines.

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

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

How can I find direct flights from Bangkok to Seattle?

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

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

Yes. Cheapflights offers flight deals from Bangkok 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.

฿16,024+ Cheap Flights from Bangkok to Seattle

Cheap flight deals from Bangkok to Seattle

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Bangkok to Seattle
Explore the most affordable flight options available from Bangkok to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2026.

Sun 4/1001:35 -

1 stop27h 40m

Sun 1/1100:10 -

1 stop20h 05m

Deal found 18/8฿25,194

Sat 31/1000:55 -

1 stop23h 05m

Thu 5/1111:00 -

1 stop22h 45m

Deal found 19/8฿25,227

Tue 20/1011:45 -

1 stop17h 30m

Tue 27/1000:10 -

1 stop21h 05m

Deal found 21/8฿25,259

Thu 3/923:30 -

1 stop25h 10m

Wed 16/912:50 -

1 stop20h 45m

Deal found 21/8฿25,292

Sat 31/1000:55 -

1 stop23h 05m

Wed 4/1111:00 -

1 stop19h 30m

Deal found 22/8฿25,521

Sun 4/1011:45 -

1 stop17h 30m

Sat 20/300:10 -

1 stop21h 05m

Deal found 20/8฿25,553

Sat 26/901:35 -

1 stop27h 40m

Mon 8/300:10 -

1 stop30h 50m

Deal found 21/8฿25,586

Sun 13/909:50 -

1 stop38h 50m

Sun 4/1012:50 -

1 stop20h 45m

Deal found 18/8฿25,782

Thu 17/909:50 -

1 stop38h 50m

Thu 24/912:50 -

1 stop20h 45m

Deal found 20/8฿25,814

Fri 2/1007:55 -

1 stop21h 20m

Thu 8/1001:30 -

1 stop30h 05m

Deal found 18/8฿25,847

Sun 4/1002:35 -

1 stop22h 05m

Mon 12/1012:50 -

1 stop34h 45m

Deal found 21/8฿25,945

Tue 22/1223:55 -

1 stop29h 00m

Thu 31/1200:10 -

1 stop30h 50m

Deal found 21/8฿25,977

Best flights from Bangkok to Seattle
Discover carefully curated flight deals from Bangkok to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Mon 14/902:35 -

1 stop22h 05m

Wed 16/912:50 -

1 stop34h 45m

Deal found 20/8฿26,565

Tue 20/1009:35 -

1 stop18h 50m

Wed 28/1019:35 -

2 stops25h 55m

Deal found 21/8฿27,413

Tue 1/1221:30 -

2 stops34h 29m

Mon 28/1207:20 -

2 stops26h 25m

Deal found 19/8฿29,894

Fri 2/1021:00 -

2 stops37h 44m

Fri 9/1006:12 -

2 stops27h 43m

Deal found 18/8฿30,089

Sun 1/1123:00 -

1 stop28h 35m

Thu 5/1116:05 -

1 stop37h 05m

Deal found 19/8฿51,498

Thu 22/1015:45 -

2 stops23h 30m

Fri 6/1115:40 -

1 stop22h 30m

Deal found 18/8฿27,838

Thu 22/1009:50 -

2 stops26h 15m

Fri 6/1107:16 -

2 stops25h 04m

Deal found 19/8฿29,894

Wed 9/907:00 -

2 stops22h 45m

Wed 9/918:52 -

2 stops24h 43m

Deal found 20/8฿27,870

Mon 16/1109:10 -

2 stops25h 27m

Thu 14/106:29 -

2 stops31h 41m

Deal found 19/8฿27,968

Sun 1/1107:10 -

2 stops28h 37m

Thu 5/1113:16 -

3 stops31h 14m

Deal found 19/8฿32,863

Thu 29/1011:10 -

1 stop40h 25m

Mon 2/1116:05 -

1 stop37h 05m

Deal found 17/8฿51,563

Thu 17/912:10 -

1 stop39h 25m

Thu 24/917:15 -

1 stop27h 55m

Deal found 20/8฿51,629

Sat 19/1208:55 -

1 stop42h 40m

Sat 2/116:05 -

1 stop27h 00m

Deal found 19/8฿60,277

Sun 1/1123:00 -

1 stop28h 35m

Wed 4/1116:05 -

1 stop37h 05m

Deal found 22/8฿52,085

Wed 2/913:30 -

1 stop38h 05m

Tue 29/917:15 -

1 stop27h 55m

Deal found 20/8฿52,967

Tue 15/907:45 -

2 stops26h 00m

Thu 24/901:15 -

1 stop28h 15m

Deal found 21/8฿85,047

Sun 27/923:50 -

2 stops32h 54m

Tue 9/310:45 -

2 stops32h 20m

Deal found 21/8฿72,874

Mon 21/1202:30 -

1 stop26h 25m

Sat 9/111:44 -

2 stops36h 46m

Deal found 22/8฿175,642

Sat 17/1002:45 -

1 stop24h 55m

Tue 27/1016:40 -

2 stops41h 35m

Deal found 21/8฿192,481

Find flight deals from Bangkok to Seattle

Round-trip from	฿25,194
One-way from	฿16,024
Popular in	August
Cheapest in	March
Average price	฿32,798

Asiana Airlines
22/10-5/11
2 total stops
37h 35m total
Bangkok to Seattle

Search Deals

16/11
2 total stops
56h 44m total
Bangkok to Seattle

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (฿76,386 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (฿12,707 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Mon 14/9

02:35-10:40

1 stop22h 05m

Seattle/Tacoma Intl

Wed 16/9

12:50-13:35

1 stop34h 45m

฿26,565

Fastest return journey

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Tue 20/10

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Wed 28/10

19:35-11:30

2 stops25h 55m

฿27,413

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Thu 22/10

15:45-01:15

2 stops23h 30m

Seattle/Tacoma Intl

Fri 6/11

15:40-05:10

1 stop22h 30m

฿27,838

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Wed 9/9

07:00-15:45

2 stops22h 45m

Seattle/Tacoma Intl

Wed 9/9

18:52-09:35

2 stops24h 43m

฿27,870

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Mon 16/11

09:10-19:37

2 stops25h 27m

Seattle/Tacoma Intl

Thu 14/1

06:29-05:10

2 stops31h 41m

฿27,968

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Tue 1/12

21:30-16:59

2 stops34h 29m

Seattle/Tacoma Intl

Mon 28/12

07:20-00:45

2 stops26h 25m

฿29,894

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Thu 22/10

09:50-22:05

2 stops26h 15m

Seattle/Tacoma Intl

Fri 6/11

07:16-23:20

2 stops25h 04m

฿29,894

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Fri 2/10

21:00-20:44

2 stops37h 44m

Seattle/Tacoma Intl

Fri 9/10

06:12-23:55

2 stops27h 43m

฿30,089

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Sun 1/11

07:10-21:47

2 stops28h 37m

Seattle/Tacoma Intl

Thu 5/11

13:16-11:30

3 stops31h 14m

฿32,863

BangkokSeattle

DMK Bangkok Don Mueang Intl - SEA Seattle/Tacoma Intl

DMKSEA

Bangkok Don Mueang Intl

Sun 1/11

23:00-12:35

1 stop28h 35m

Seattle/Tacoma Intl

Thu 5/11

16:05-20:10

1 stop37h 05m

฿51,498

Flights are sorted by cheapest return flights first.

Deals found on 20/8

Showing 1-10 of 40 resultsSorted by cheapest first

Best time to book a flight from Bangkok to Seattle

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

TH1-SEA

BKK-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 Bangkok to Seattle

TH1-SEA

BKK-SEA

DMK-SEA

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

Currently, March is the cheapest month in which you can book a flight from Bangkok to Seattle (average of ฿24,215). Flying from Bangkok to Seattle in August is currently the most expensive (average of ฿32,798). 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 much does it cost for a return flight from Bangkok to Seattle?

Airfare is below average for this route at the moment.

Bangkok to Seattle flights typically cost between ฿28,229 and ฿31,721 in October.
The cheapest return price found within the last 5 days was ฿25,194 on Asiana Airlines (4 Oct–1 Nov).

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

The best time to book flights from Bangkok to Seattle is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from Bangkok 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

8.8

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

8.8

Very Good

STARLUX Airlines

8.8

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

1,518 reviews

STARLUX Airlines

8.8

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

843 reviews

STARLUX Airlines

8.8

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

559 reviews

STARLUX Airlines

8.8

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.

เดลต้า

7.8

Good

8,513 reviews

STARLUX Airlines

8.8

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 Bangkok?
Located just 18.4 km from the city centre, Seattle/Tacoma Intl is the airport most travellers will use when flying to Seattle from Bangkok. Booking flights from Bangkok to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 0 daily inbound flights from Bangkok from 6 different airlines.
How long is the flight from Bangkok to Seattle?
Korean Air, United Airlines, and Emirates can get you from Bangkok to Seattle in just under 18h 50m. Your travel time can differ by up to 9h 45m. Bangkok and Seattle are separated by a distance of 11978 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Bangkok to Seattle round-trip?
According to our current data, Philippine Airlines (฿20,954), China Airlines (฿21,787), and Asiana Airlines (฿21,879) offers the cheapest pricing from Bangkok to Seattle. Philippine Airlines is priced at 26% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Bangkok to Seattle one-way?
One-way options have recently been found by users for as low as ฿14,065 on STARLUX Airlines. Other airlines that offer cheap prices include China Airlines from ฿15,449 and Qatar Airways from ฿16,771 one-way.
Can I find deals for flights from Bangkok to Seattle that include hotel bookings?
Yes. In addition to deals on Bangkok to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Bangkok to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bangkok to Seattle.
Can I find deals for business class flights from Bangkok to Seattle?
Yes. Cheapflights offers flight deals from Bangkok 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 Bangkok to Seattle?
Currently, March is the cheapest month in which you can book a flight from Bangkok to Seattle (average of ฿24,215). Flying from Bangkok to Seattle in August is currently the most expensive (average of ฿32,798). 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 Bangkok to Seattle

Chiang Mai to Seattle flights

Chiang Mai to Portland flights

Top 6 airlines flying from Bangkok to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Philippine Airlines	Cheapest฿20,954	Average฿22,428	FlexibilityNo cancel fee	On-time60%	Search Philippine Airlines flights
China Airlines	Cheapest฿21,787	Average฿26,315	FlexibilityNo cancel fee	On-time70%	Search China Airlines flights
Asiana Airlines	Cheapest฿21,879	Average฿23,784	FlexibilityNo cancel fee	On-time76%	Search Asiana Airlines flights
STARLUX Airlines	Cheapest฿23,459	Average฿28,261	FlexibilityNo cancel fee	On-timeN/A	Search STARLUX Airlines flights
EVA Air	Cheapest฿25,954	Average฿29,850	FlexibilityNo cancel fee	On-time74%	Search EVA Air flights
เดลต้า	Cheapest฿29,842	Average฿30,038	FlexibilityNo cancel fee	On-timeN/A	Search เดลต้า flights

Fly with Cheapflights

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

Deals for Bangkok to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Bangkok to Seattle.

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

Yes, we can. To see specific flights from Bangkok to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Not ready to book yet? You can track prices for flights from Bangkok to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Bangkok to Seattle from ฿16,024

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Bangkok to Seattle

Cheapest flights from Bangkok to SeattleExplore the most affordable flight options available from Bangkok to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2026.

Explore the most affordable flight options available from Bangkok to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2026.

Best flights from Bangkok to SeattleDiscover carefully curated flight deals from Bangkok to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Discover carefully curated flight deals from Bangkok to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Last-minute flights from Bangkok to SeattleDiscover last-minute flight deals from Bangkok to Seattle. Data last updated 22 August 2026 and is based on user searches.

Discover last-minute flight deals from Bangkok to Seattle. Data last updated 22 August 2026 and is based on user searches.

One-way flights from Bangkok to SeattleSearch for one-way flight options from Bangkok to Seattle. Find affordable one-way fares based on user searches. Data last updated 22 August 2026.

Search for one-way flight options from Bangkok to Seattle. Find affordable one-way fares based on user searches. Data last updated 22 August 2026.

Find flight deals from Bangkok 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 Bangkok to Seattle that are best for you.

Best time to book a flight from Bangkok to Seattle

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

Cheapflights Insights

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

How much does it cost for a return flight from Bangkok to Seattle?

Airfare is below average for this route at the moment.

Bangkok to Seattle flights typically cost between ฿28,229 and ฿31,721 in October.The cheapest return price found within the last 5 days was ฿25,194 on Asiana Airlines (4 Oct–1 Nov).

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

The best time to book flights from Bangkok to Seattle is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from Bangkok 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 Bangkok?

How long is the flight from Bangkok to Seattle?

What are the cheapest airlines flying from Bangkok to Seattle round-trip?

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

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

How can I find direct flights from Bangkok to Seattle?

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

What is the cheapest month to book a flight from Bangkok 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 Bangkok 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 Bangkok to Seattle by cabin class

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

Bangkok and Seattle flights

Browse other Bangkok and Seattle flight options. Last updated on 22 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top 6 airlines flying from Bangkok to Seattle

Fly with Cheapflights

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

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

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

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

100% Free

Book With Flexibility

Travel Smart

Cheapest flights from Bangkok to Seattle
Explore the most affordable flight options available from Bangkok to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2026.

Best flights from Bangkok to Seattle
Discover carefully curated flight deals from Bangkok to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Last-minute flights from Bangkok to Seattle
Discover last-minute flight deals from Bangkok to Seattle. Data last updated 22 August 2026 and is based on user searches.

One-way flights from Bangkok to Seattle
Search for one-way flight options from Bangkok to Seattle. Find affordable one-way fares based on user searches. Data last updated 22 August 2026.

Bangkok to Seattle flights typically cost between ฿28,229 and ฿31,721 in October.
The cheapest return price found within the last 5 days was ฿25,194 on Asiana Airlines (4 Oct–1 Nov).