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Cheap flights from Thailand to Seattle from ฿14,002

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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
22 Mar — 29 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Thailand to Seattle

Enter your travel dates to find the best prices.

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 20 February 2026.

Mon 16/301:05
BKK
-
SEA
1 stop21h 55m
ไห่หนานแอร์ไลน์
Tue 7/411:00
SEA
-
BKK
1 stop22h 00m
ไห่หนานแอร์ไลน์
Deal found 19/2฿19,585
Wed 8/411:20
BKK
-
SEA
1 stop35h 45m
ไห่หนานแอร์ไลน์
Tue 21/411:00
SEA
-
BKK
1 stop22h 00m
ไห่หนานแอร์ไลน์
Deal found 18/2฿20,208
Tue 22/909:50
BKK
-
SEA
1 stop19h 05m
Multiple Airlines
Tue 29/900:55
SEA
-
BKK
1 stop32h 40m
Multiple Airlines
Deal found 16/2฿20,302
Sun 31/501:20
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Mon 31/800:55
SEA
-
BKK
1 stop19h 45m
Asiana Airlines
Deal found 19/2฿20,427
Tue 2/611:45
BKK
-
SEA
1 stop17h 10m
Asiana Airlines
Tue 25/800:55
SEA
-
BKK
1 stop19h 45m
Asiana Airlines
Deal found 16/2฿20,583
Tue 7/423:40
BKK
-
SEA
1 stop34h 25m
Philippine Airlines
Tue 5/523:10
SEA
-
BKK
1 stop23h 00m
Philippine Airlines
Deal found 17/2฿20,676
Tue 7/423:40
BKK
-
SEA
1 stop34h 25m
Philippine Airlines
Tue 21/423:10
SEA
-
BKK
1 stop29h 20m
Philippine Airlines
Deal found 19/2฿20,707
Mon 6/406:35
CNX
-
SEA
2 stops46h 20m
Multiple Airlines
Sun 12/400:55
SEA
-
CNX
2 stops26h 00m
Multiple Airlines
Deal found 20/2฿24,824
Wed 13/511:35
CNX
-
SEA
1 stop21h 55m
EVA Air
Tue 30/600:50
SEA
-
CNX
1 stop19h 35m
EVA Air
Deal found 16/2฿25,354
Mon 6/420:00
CNX
-
SEA
2 stops37h 30m
EVA Air
Sun 12/401:30
SEA
-
CNX
1 stop18h 55m
EVA Air
Deal found 20/2฿26,570
Thu 23/711:20
CNX
-
SEA
1 stop22h 25m
China Airlines
Tue 22/901:15
SEA
-
CNX
1 stop19h 05m
China Airlines
Deal found 16/2฿26,726
Wed 1/711:55
CNX
-
SEA
2 stops21h 55m
EVA Air
Tue 11/802:10
SEA
-
CNX
1 stop18h 15m
EVA Air
Deal found 19/2฿27,007

Find flight deals from Thailand to Seattle

Keep the following information in mind while searching for Thailand to Seattle flight deals. Data was last updated 20 February 2026.

Round-trip from

฿19,585

One-way from

฿14,002

Popular in

July

Cheapest in

March

Average price

฿23,109
ไห่หนานแอร์ไลน์
  • ไห่หนานแอร์ไลน์
  • 16/3-7/4
  • 2 total stops
  • 43h 55m total
  • Thailand to Seattle
Search Deals
11/6
  • 11/6
  • 2 total stops
  • 41h 50m total
  • Thailand to Seattle
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (฿125,752 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿21,662 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Thailand 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 20 February 2026.
Use the filters below to find and compare flights from Thailand to Seattle that are best for you.

Fly from

Thailand

Fly to

Seattle

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 6/3

12:20-13:55

1 stop16h 35m

Seattle/Tacoma Intl

Mon 30/3

00:55-23:20

1 stop32h 25m

฿22,329

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 2/4

11:45-14:55

1 stop17h 10m

Seattle/Tacoma Intl

Mon 11/5

00:55-23:20

1 stop32h 25m

฿22,329

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 21/3

12:20-14:55

1 stop16h 35m

Seattle/Tacoma Intl

Thu 13/8

00:55-23:20

1 stop32h 25m

฿22,360

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 2/4

01:20-14:55

1 stop27h 35m

Seattle/Tacoma Intl

Tue 5/5

00:55-23:20

1 stop32h 25m

฿22,454

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 15/4

13:25-20:05

1 stop20h 40m

Seattle/Tacoma Intl

Thu 21/5

23:10-22:40

1 stop33h 30m

฿22,516

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 8/4

13:25-20:05

1 stop20h 40m

Seattle/Tacoma Intl

Sun 19/4

23:10-12:10

1 stop23h 00m

฿22,516

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 2/4

11:45-14:55

1 stop17h 10m

Seattle/Tacoma Intl

Thu 7/5

00:55-10:40

1 stop19h 45m

฿22,734

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 13/4

01:20-14:55

1 stop27h 35m

Seattle/Tacoma Intl

Thu 21/5

00:55-23:20

1 stop32h 25m

฿22,984

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 17/8

23:40-20:05

1 stop34h 25m

Seattle/Tacoma Intl

Sun 11/10

23:10-22:40

1 stop33h 30m

฿23,389

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 6/4

15:00-10:05

1 stop33h 05m

Seattle/Tacoma Intl

Thu 23/4

11:45-00:10

1 stop22h 25m

฿23,982

Flights are sorted by cheapest return flights first.

Deals found on 17/2

Showing 1-10 of 58 results
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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.
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

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

Currently, April is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿19,397). Flying from Thailand to Seattle in July is currently the most expensive (average of ฿23,732). 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.

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 20 February 2026.
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
8.9
Very Good
Check prices

Overall

8.9

Food

8.7

Boarding

8.9

Crew

9.2

Entertainment

8.8

Comfort

8.9

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

Overall

8.9

Food

8.7

Boarding

8.9

Crew

9.2

Entertainment

8.8

Comfort

8.9

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
1,357 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Overall

8.9

Food

8.7

Boarding

8.9

Crew

9.2

Entertainment

8.8

Comfort

8.9

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
804 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Overall

8.9

Food

8.7

Boarding

8.9

Crew

9.2

Entertainment

8.8

Comfort

8.9

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
8,219 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Overall

8.9

Food

8.7

Boarding

8.9

Crew

9.2

Entertainment

8.8

Comfort

8.9

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
7.2
Good
957 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Overall

8.9

Food

8.7

Boarding

8.9

Crew

9.2

Entertainment

8.8

Comfort

8.9

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 Thailand 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 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 ฿22,329, Asiana Airlines can have you in Seattle from Thailand in 16h 35m. 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?

    ฿12,410 is the cheapest one-way deal found within the past few days, from Philippine Airlines. You may also be able to find cheap deals on China Airlines and STARLUX Airlines, with prices starting from ฿14,646 and ฿14,835, 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, April is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿19,397). Flying from Thailand to Seattle in July is currently the most expensive (average of ฿23,732). 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 Thailand 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 Thailand to Seattle

Discover the top 7 airlines that operate flights from Thailand 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 20 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿20,121Average฿21,343FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
Asiana AirlinesCheapest฿20,908Average฿29,819FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
STARLUX AirlinesCheapest฿22,963Average฿26,712FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
China AirlinesCheapest฿23,310Average฿26,266FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
EVA AirCheapest฿24,616Average฿27,373FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿25,842Average฿29,072FlexibilityNo cancel feeOn-timeN/A
Search เดลต้า flights
Korean AirCheapest฿25,855Average฿30,588FlexibilityNo cancel feeOn-time81%
Search Korean Air 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 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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