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Cheap flights from Bangkok to Seattle from ฿13,357

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
7 Feb — 14 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Bangkok to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 8 January 2026.

Round-trip from

฿19,738

One-way from

฿13,357

Popular in

July

Cheapest in

December

Average price

฿29,560
5/2-21/2
  • 5/2-21/2
  • 2 total stops
  • 60h 35m total
  • Bangkok to Seattle
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Philippine Airlines
  • Philippine Airlines
  • 11/2
  • 1 total stop
  • 38h 55m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (฿104,340 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿19,751 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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Find flight deals from Bangkok to Seattle

Enter your travel dates to find the best prices.

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 8 January 2026.

Thu 5/202:05BKK - SEA
1 stop26h 50mMultiple Airlines
Sat 21/200:10SEA - BKK
1 stop33h 45mMultiple Airlines
Deal found 6/1฿19,738
Mon 6/721:40BKK - SEA
1 stop31h 45mMultiple Airlines
Sun 13/900:55SEA - BKK
1 stop34h 10mMultiple Airlines
Deal found 5/1฿19,926
Mon 2/301:05BKK - SEA
1 stop21h 55mไห่หนานแอร์ไลน์
Tue 24/311:00SEA - BKK
1 stop22h 25mไห่หนานแอร์ไลน์
Deal found 6/1฿19,988
Tue 10/202:05BKK - SEA
1 stop26h 50mMultiple Airlines
Tue 21/700:55SEA - BKK
1 stop34h 10mMultiple Airlines
Deal found 6/1฿20,114
Wed 1/702:35BKK - SEA
1 stop26h 50mMultiple Airlines
Tue 4/800:55SEA - BKK
1 stop32h 30mMultiple Airlines
Deal found 5/1฿20,145
Tue 10/221:30BKK - SEA
1 stop31h 25mMultiple Airlines
Mon 16/300:10SEA - BKK
1 stop33h 10mMultiple Airlines
Deal found 6/1฿20,176
Tue 3/202:05BKK - SEA
1 stop26h 50mMultiple Airlines
Tue 28/700:55SEA - BKK
1 stop34h 10mMultiple Airlines
Deal found 8/1฿20,677
Mon 19/101:05BKK - SEA
1 stop21h 55mไห่หนานแอร์ไลน์
Tue 3/210:00SEA - BKK
1 stop22h 25mไห่หนานแอร์ไลน์
Deal found 6/1฿20,708
Mon 30/300:40BKK - SEA
1 stop22h 20mไห่หนานแอร์ไลน์
Thu 10/911:05SEA - BKK
1 stop33h 30mไห่หนานแอร์ไลน์
Deal found 5/1฿20,927
Mon 1/613:50BKK - SEA
1 stop33h 10mไห่หนานแอร์ไลน์
Tue 1/911:00SEA - BKK
1 stop22h 00mไห่หนานแอร์ไลน์
Deal found 6/1฿21,177
Fri 6/215:40DMK - SEA
2 stops30h 30mMultiple Airlines
Sun 22/221:30SEA - DMK
1 stop23h 10mMultiple Airlines
Deal found 6/1฿29,373
Mon 2/202:35DMK - SEA
1 stop23h 05mMultiple Airlines
Tue 10/212:20SEA - DMK
1 stop23h 25mMultiple Airlines
Deal found 6/1฿32,751

Cheapflights Fare Finder

 
Customise your flight search to find flights from Bangkok to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 8 January 2026.
Use the filters below to find and compare flights from Bangkok to Seattle that are best for you.

Fly from

Bangkok

Fly to

Seattle

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 22/5

13:50-09:00

1 stop33h 10m

Seattle/Tacoma Intl

Tue 2/6

11:00-23:00

1 stop22h 00m

฿23,304

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 29/5

13:25-20:05

1 stop20h 40m

Seattle/Tacoma Intl

Fri 12/6

23:10-12:10

1 stop23h 00m

฿23,586

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 26/5

13:10-16:10

1 stop17h 00m

Seattle/Tacoma Intl

Mon 8/6

01:15-12:00

1 stop20h 45m

฿24,681

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 1/6

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Tue 1/9

06:30-23:55

2 stops27h 25m

฿24,837

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 1/7

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Wed 12/8

08:35-23:55

2 stops25h 20m

฿24,931

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 21/5

09:35-00:33

2 stops28h 58m

Seattle/Tacoma Intl

Thu 28/5

05:00-09:45

3 stops62h 45m

฿25,025

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 23/5

09:35-23:21

2 stops27h 46m

Seattle/Tacoma Intl

Wed 3/6

16:30-04:35

1 stop22h 05m

฿25,056

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 29/5

07:00-20:48

2 stops27h 48m

Seattle/Tacoma Intl

Wed 10/6

16:30-04:35

1 stop22h 05m

฿25,087

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 17/3

13:20-19:40

1 stop20h 20m

Seattle/Tacoma Intl

Tue 7/4

08:41-18:30

2 stops43h 49m

฿25,431

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 11/2

16:55-11:18

2 stops33h 23m

Seattle/Tacoma Intl

Wed 22/7

16:30-04:35

1 stop22h 05m

฿25,650

Flights are sorted by cheapest return flights first.

Deals found on 7/1

Showing 1-10 of 40 results
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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
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

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

Use this chart to determine the optimal time to book a return flight from Bangkok to Seattle. Price data was last updated on 2 January 2026.

The best time to book flights from Bangkok to Seattle is 65 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.

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

Currently, June is the cheapest month in which you can book a flight from Bangkok to Seattle (average of ฿19,519). Flying from Bangkok to Seattle in July is currently the most expensive (average of ฿24,430). 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?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 8 January 2026.
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
8.9
Very Good
Check prices

Comfort

8.8

Food

8.6

Overall

8.9

Crew

9.1

Boarding

8.9

Entertainment

8.8

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
STARLUX Airlines
8.9
Very Good
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.8

Food

8.6

Overall

8.9

Crew

9.1

Boarding

8.9

Entertainment

8.8

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
EVA Air
8.4
Very Good
1,314 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.8

Food

8.6

Overall

8.9

Crew

9.1

Boarding

8.9

Entertainment

8.8

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
China Airlines
8.3
Very Good
798 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.8

Food

8.6

Overall

8.9

Crew

9.1

Boarding

8.9

Entertainment

8.8

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
เดลต้า
7.9
Good
8,027 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.8

Food

8.6

Overall

8.9

Crew

9.1

Boarding

8.9

Entertainment

8.8

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
Philippine Airlines
7.3
Good
949 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.8

Food

8.6

Overall

8.9

Crew

9.1

Boarding

8.9

Entertainment

8.8

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.

Related info for your journey

Find useful and relevant information for your journey from Bangkok to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 7 different airlines.

  • How long is the flight from Bangkok to Seattle?

    ไห่หนานแอร์ไลน์, Philippine Airlines, and STARLUX Airlines can get you from Bangkok to Seattle in just under 17h. Your travel time can differ by up to 16h 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 (฿20,183), STARLUX Airlines (฿23,033), and China Airlines (฿23,381) 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 ฿12,448 on Philippine Airlines. Other airlines that offer cheap prices include China Airlines from ฿14,625 and STARLUX Airlines from ฿14,881 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, June is the cheapest month in which you can book a flight from Bangkok to Seattle (average of ฿19,519). Flying from Bangkok to Seattle in July is currently the most expensive (average of ฿24,430). 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

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.
Chiang Mai to Seattle flights
Chiang Mai to Portland flights

Top 7 airlines flying from Bangkok to Seattle

Discover the top 7 airlines that operate flights from Bangkok to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 8 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿20,183Average฿21,408FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
STARLUX AirlinesCheapest฿23,033Average฿26,673FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
China AirlinesCheapest฿23,381Average฿25,379FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
EVA AirCheapest฿24,877Average฿27,316FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Korean AirCheapest฿25,934Average฿30,682FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
เดลต้าCheapest฿26,158Average฿28,792FlexibilityNo cancel feeOn-timeN/A
Search เดลต้า flights
Asiana AirlinesCheapest฿27,562Average฿30,489FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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