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Cheap flights from Bangkok to Seattle from ฿16,120

BKK — SEA
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Bangkok to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Bangkok to Seattle

Fri 11/1201:05 -
1 stop22h 15m
Sat 2/110:20 -
1 stop22h 15m
Deal found 26/10฿25,765
Sat 7/1101:05 -
1 stop28h 05m
Tue 24/1111:00 -
1 stop21h 05m
Deal found 27/10฿26,203
Sat 7/1123:15 -
1 stop24h 50m
Mon 23/1111:00 -
1 stop22h 20m
Deal found 25/10฿26,675
Mon 23/1116:20 -
1 stop31h 00m
Tue 12/110:20 -
1 stop22h 15m
Deal found 30/10฿26,912
Sat 21/1101:05 -
1 stop28h 05m
Sun 29/1111:00 -
1 stop22h 20m
Deal found 29/10฿27,046
Sat 21/1110:55 -
1 stop22h 15m
Tue 1/1200:10 -
1 stop21h 55m
Deal found 28/10฿27,249
Sun 8/1109:10 -
1 stop19h 10m
Tue 24/1112:20 -
2 stops32h 10m
Deal found 27/10฿27,316
Sat 31/1017:50 -
1 stop15h 20m
Sun 1/1100:10 -
1 stop18h 40m
Deal found 26/10฿27,485
Mon 30/1102:35 -
1 stop30h 35m
Sun 27/1200:10 -
1 stop21h 55m
Deal found 28/10฿27,552

Find flight deals from Bangkok to Seattle

Round-trip from

฿25,765

One-way from

฿16,120

Popular in

August

Cheapest in

March

Average price

฿30,318
ไห่หนานแอร์ไลน์
  • ไห่หนานแอร์ไลน์
  • 11/12-2/1
  • 2 total stops
  • 44h 30m total
  • Bangkok to Seattle
Search Deals
China Airlines
  • China Airlines
  • 19/4-31/12
  • 1 total stop
  • 22h 25m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (฿52,932 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿11,446 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Mon 19/4

10:50-19:15

1 stop22h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿16,120

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Tue 1/12

10:55-18:10

1 stop22h 15m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿16,120

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Mon 12/4

17:30-19:15

1 stop15h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿16,154
Fastest return journey

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Thu 17/12

17:50-18:10

1 stop15h 20m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿16,154

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Wed 18/11

23:15-20:09

2 stops35h 54m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,503

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Mon 16/11

01:05-16:30

2 stops30h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,503

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Sat 5/12

01:05-15:11

2 stops29h 06m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,503

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Tue 19/1

09:50-20:24

2 stops25h 34m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,503

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Fri 11/12

01:05-17:15

2 stops31h 10m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,503

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Thu 3/12

23:15-15:11

2 stops30h 56m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,503

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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.
Estimated return price

Cheapflights Insights

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

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 ฿24,450). Flying from Bangkok to Seattle in August is currently the most expensive (average of ฿33,757). 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 ฿27,013 and ฿32,240 in December.
The cheapest return price found within the last 5 days was ฿25,765 on ไห่หนานแอร์ไลน์ (11 Dec–2 Jan).

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
8.8
Very Good
Check prices

Boarding

8.8

Crew

9.1

Food

8.6

Comfort

8.8

Entertainment

8.7

Overall

8.8

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

Boarding

8.8

Crew

9.1

Food

8.6

Comfort

8.8

Entertainment

8.7

Overall

8.8

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
1,552 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.8

Crew

9.1

Food

8.6

Comfort

8.8

Entertainment

8.7

Overall

8.8

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
854 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.8

Crew

9.1

Food

8.6

Comfort

8.8

Entertainment

8.7

Overall

8.8

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
569 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.8

Crew

9.1

Food

8.6

Comfort

8.8

Entertainment

8.7

Overall

8.8

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
1,038 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.8

Crew

9.1

Food

8.6

Comfort

8.8

Entertainment

8.7

Overall

8.8

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?

    Korean Air, China Airlines, and United Airlines can get you from Bangkok to Seattle in just under 19h 55m. Your travel time can differ by up to 8h 10m. 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 (฿21,793), China Airlines (฿22,514), and Asiana Airlines (฿22,609) offers the cheapest pricing from Bangkok to Seattle. Philippine Airlines is priced at 27% 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 ฿14,535 on STARLUX Airlines. Other airlines that offer cheap prices include Korean Air from ฿15,752 and China Airlines from ฿15,965 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 ฿24,450). Flying from Bangkok to Seattle in August is currently the most expensive (average of ฿33,757). 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 for Bangkok to Seattle

Chiang Mai to Seattle flights
Chiang Mai to Portland flights

Top 5 airlines flying from Bangkok to Seattle

AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿21,793Average฿23,219FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
China AirlinesCheapest฿22,514Average฿29,964FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Asiana AirlinesCheapest฿22,609Average฿24,577FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
STARLUX AirlinesCheapest฿24,242Average฿30,046FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapest฿26,820Average฿30,865FlexibilityNo cancel feeOn-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.

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