How long is the flight from Bangkok to Seattle?

เดลต้า, Korean Air, and United Airlines can get you from Bangkok to Seattle in just under 17h 06m. Your travel time can differ by up to 2h 14m. 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 (฿21,378), China Airlines (฿22,228), and Asiana Airlines (฿22,322) 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 ฿14,350 on STARLUX Airlines. Other airlines that offer cheap prices include Korean Air from ฿15,551 and China Airlines from ฿15,762 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 China Airlines 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 5 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.

฿15,948+ 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 20 September 2026.

Sun 4/1011:45 -

1 stop17h 30m

Tue 6/1000:10 -

1 stop33h 25m

Deal found 18/9฿25,338

Sun 11/1002:35 -

1 stop22h 05m

Sun 25/1012:00 -

1 stop21h 05m

Deal found 18/9฿25,604

Mon 12/1002:35 -

1 stop26h 40m

Tue 10/1111:00 -

1 stop35h 25m

Deal found 19/9฿25,837

Tue 6/1002:35 -

1 stop22h 05m

Thu 22/1000:10 -

1 stop23h 25m

Deal found 15/9฿25,937

Sun 1/1109:50 -

1 stop19h 20m

Sun 8/1111:00 -

1 stop21h 05m

Deal found 17/9฿25,970

Tue 3/1109:50 -

1 stop19h 20m

Mon 9/1100:10 -

1 stop22h 15m

Deal found 18/9฿26,003

Mon 12/1002:35 -

1 stop22h 05m

Tue 27/1012:00 -

1 stop19h 30m

Deal found 16/9฿26,070

Mon 19/1000:20 -

1 stop22h 40m

Thu 12/1110:05 -

1 stop33h 35m

Deal found 16/9฿26,370

Mon 19/1000:20 -

1 stop22h 40m

Tue 10/1110:20 -

1 stop22h 05m

Deal found 15/9฿26,436

Tue 20/1009:50 -

1 stop17h 24m

Wed 28/1013:30 -

1 stop20h 50m

Deal found 18/9฿26,569

Tue 22/1203:00 -

2 stops26h 10m

Tue 5/100:10 -

2 stops33h 05m

Deal found 20/9฿34,660

Tue 15/1206:20 -

2 stops26h 50m

Mon 28/1200:10 -

2 stops30h 35m

Deal found 19/9฿34,993

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 20 September 2026.

Thu 17/1209:50 -

1 stop17h 06m

Tue 19/112:40 -

1 stop20h 40m

Deal found 18/9฿26,569

Sat 19/1209:50 -

1 stop19h 20m

Fri 1/100:10 -

1 stop31h 55m

Deal found 19/9฿26,669

Wed 7/1009:35 -

1 stop18h 50m

Sat 17/1007:11 -

2 stops36h 24m

Deal found 19/9฿27,835

Wed 4/1123:00 -

1 stop28h 35m

Sun 8/1116:05 -

1 stop37h 05m

Deal found 17/9฿52,073

Thu 22/1002:35 -

1 stop24h 39m

Fri 13/1112:30 -

1 stop20h 50m

Deal found 15/9฿26,669

Tue 13/1007:00 -

2 stops28h 01m

Tue 27/1016:39 -

2 stops28h 51m

Deal found 16/9฿28,367

Sat 19/1211:10 -

1 stop40h 25m

Sat 2/116:05 -

1 stop37h 05m

Deal found 19/9฿60,996

Tue 13/1015:45 -

3 stops47h 30m

Fri 16/1019:25 -

3 stops48h 10m

Deal found 19/9฿28,600

Tue 20/1007:00 -

2 stops30h 26m

Wed 28/1016:39 -

2 stops28h 51m

Deal found 20/9฿28,600

Wed 21/1015:45 -

2 stops33h 50m

Sun 15/1116:39 -

2 stops27h 51m

Deal found 15/9฿28,667

Sun 18/1015:45 -

3 stops36h 32m

Wed 11/1116:39 -

2 stops27h 51m

Deal found 15/9฿28,667

Tue 13/1012:10 -

1 stop39h 15m

Tue 10/1116:05 -

1 stop27h 00m

Deal found 19/9฿52,107

Sun 1/1123:00 -

1 stop28h 35m

Fri 6/1116:05 -

1 stop37h 05m

Deal found 19/9฿52,739

Wed 16/1208:55 -

1 stop42h 40m

Tue 19/116:05 -

1 stop27h 00m

Deal found 18/9฿53,272

Mon 2/1123:00 -

1 stop28h 35m

Wed 25/1116:05 -

1 stop37h 05m

Deal found 20/9฿54,404

Sat 31/1011:10 -

1 stop40h 25m

Tue 24/1116:05 -

1 stop27h 00m

Deal found 17/9฿55,003

Sat 7/1111:10 -

1 stop40h 25m

Sun 22/1116:05 -

1 stop27h 00m

Deal found 15/9฿55,236

Sat 17/1023:50 -

1 stop27h 35m

Sat 24/1017:15 -

1 stop26h 50m

Deal found 19/9฿56,768

Mon 2/1123:00 -

1 stop28h 35m

Thu 17/1216:05 -

1 stop24h 50m

Deal found 17/9฿57,900

Find flight deals from Bangkok to Seattle

Round-trip from	฿25,338
One-way from	฿15,948
Popular in	August
Cheapest in	March
Average price	฿29,100

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

Search Deals

China Airlines
10/10-31/12
1 total stop
15h 45m total
Bangkok to Seattle

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (฿61,024 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (฿12,824 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

Fastest return journey

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Sun 22/11

17:50-18:10

1 stop15h 20m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,948

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Sun 1/11

17:50-18:10

1 stop15h 20m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,948

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Sat 21/11

01:05-20:09

2 stops34h 04m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,713

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Wed 7/10

09:50-20:27

2 stops24h 37m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,713

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Fri 25/9

02:35-16:30

2 stops27h 55m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,713

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Tue 29/9

02:35-16:30

2 stops27h 55m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,746

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Sat 5/12

01:05-22:09

2 stops36h 04m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,746

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Tue 1/12

21:40-15:15

2 stops32h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,746

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Fri 2/10

23:30-20:39

2 stops35h 09m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,746

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Wed 3/2

23:15-20:31

2 stops36h 16m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,780

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 38 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 ฿24,705). Flying from Bangkok to Seattle in August is currently the most expensive (average of ฿33,328). 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 ฿26,619 and ฿30,049 in October.
The cheapest return price found within the last 5 days was ฿25,338 on Asiana Airlines (4 Oct–6 Oct).

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

The best time to book flights from Bangkok to Seattle is 78 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

8.7

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

1,527 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

1,027 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 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 5 different airlines.
How long is the flight from Bangkok to Seattle?
เดลต้า, Korean Air, and United Airlines can get you from Bangkok to Seattle in just under 17h 06m. Your travel time can differ by up to 2h 14m. 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 (฿21,378), China Airlines (฿22,228), and Asiana Airlines (฿22,322) 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 ฿14,350 on STARLUX Airlines. Other airlines that offer cheap prices include Korean Air from ฿15,551 and China Airlines from ฿15,762 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 ฿24,705). Flying from Bangkok to Seattle in August is currently the most expensive (average of ฿33,328). 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 5 airlines flying from Bangkok to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Philippine Airlines	Cheapest฿21,378	Average฿22,924	FlexibilityNo cancel fee	On-time60%	Search Philippine Airlines flights
China Airlines	Cheapest฿22,228	Average฿26,847	FlexibilityNo cancel fee	On-time70%	Search China Airlines flights
Asiana Airlines	Cheapest฿22,322	Average฿24,265	FlexibilityNo cancel fee	On-time76%	Search Asiana Airlines flights
STARLUX Airlines	Cheapest฿23,933	Average฿29,981	FlexibilityNo cancel fee	On-timeN/A	Search STARLUX Airlines flights
EVA Air	Cheapest฿26,479	Average฿30,472	FlexibilityNo cancel fee	On-time74%	Search EVA Air 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 ฿15,948

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/11. 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 20 September 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 20 September 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 20 September 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 20 September 2026.

Last-minute flights from Bangkok to SeattleDiscover last-minute flight deals from Bangkok to Seattle. Data last updated 20 September 2026 and is based on user searches.

Discover last-minute flight deals from Bangkok to Seattle. Data last updated 20 September 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 20 September 2026.

Search for one-way flight options from Bangkok to Seattle. Find affordable one-way fares based on user searches. Data last updated 20 September 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 ฿26,619 and ฿30,049 in October.The cheapest return price found within the last 5 days was ฿25,338 on Asiana Airlines (4 Oct–6 Oct).

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

The best time to book flights from Bangkok to Seattle is 78 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 20 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top 5 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 20 September 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 20 September 2026.

Last-minute flights from Bangkok to Seattle
Discover last-minute flight deals from Bangkok to Seattle. Data last updated 20 September 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 20 September 2026.

Bangkok to Seattle flights typically cost between ฿26,619 and ฿30,049 in October.
The cheapest return price found within the last 5 days was ฿25,338 on Asiana Airlines (4 Oct–6 Oct).