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Cheap flights from Thailand to Seattle from ฿13,952

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
1 Apr — 8 Apr1
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 2 March 2026.

Mon 16/301:05
BKK
-
SEA
1 stop21h 55m
ไห่หนานแอร์ไลน์
Tue 7/411:00
SEA
-
BKK
1 stop22h 00m
ไห่หนานแอร์ไลน์
Deal found 26/2฿19,967
Sun 31/501:20
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Mon 31/800:55
SEA
-
BKK
1 stop19h 45m
Asiana Airlines
Deal found 28/2฿20,432
Sun 31/501:20
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Tue 15/900:55
SEA
-
BKK
1 stop32h 25m
Asiana Airlines
Deal found 26/2฿20,463
Wed 22/401:20
BKK
-
SEA
1 stop27h 35m
Multiple Airlines
Tue 5/500:55
SEA
-
BKK
1 stop22h 40m
Multiple Airlines
Deal found 27/2฿20,525
Tue 14/411:45
BKK
-
SEA
1 stop17h 10m
Asiana Airlines
Tue 21/400:55
SEA
-
BKK
1 stop19h 45m
Asiana Airlines
Deal found 1/3฿20,618
Thu 14/511:45
BKK
-
SEA
1 stop17h 10m
Asiana Airlines
Fri 29/500:55
SEA
-
BKK
1 stop32h 25m
Asiana Airlines
Deal found 28/2฿20,742
Fri 5/607:00
BKK
-
SEA
2 stops25h 30m
ANA
Sat 5/909:55
SEA
-
BKK
2 stops28h 40m
ANA
Deal found 26/2฿20,773
Wed 15/423:40
BKK
-
SEA
1 stop34h 25m
Philippine Airlines
Tue 30/623:10
SEA
-
BKK
1 stop33h 30m
Philippine Airlines
Deal found 26/2฿20,959
Thu 5/311:50
CNX
-
SEA
1 stop20h 40m
EVA Air
Wed 22/401:30
SEA
-
CNX
1 stop18h 55m
EVA Air
Deal found 27/2฿23,812
Tue 13/1011:20
CNX
-
SEA
1 stop21h 55m
China Airlines
Mon 26/1001:10
SEA
-
CNX
1 stop19h 15m
China Airlines
Deal found 28/2฿24,153
Tue 1/911:35
CNX
-
SEA
1 stop22h 05m
EVA Air
Wed 16/901:30
SEA
-
CNX
1 stop18h 55m
EVA Air
Deal found 28/2฿24,525
Wed 2/911:35
CNX
-
SEA
1 stop22h 05m
EVA Air
Tue 15/901:30
SEA
-
CNX
1 stop18h 55m
EVA Air
Deal found 28/2฿25,362

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 2 March 2026.

Round-trip from

฿19,967

One-way from

฿13,952

Popular in

July

Cheapest in

March

Average price

฿22,819
ไห่หนานแอร์ไลน์
  • ไห่หนานแอร์ไลน์
  • 16/3-7/4
  • 2 total stops
  • 43h 55m total
  • Thailand to Seattle
Search Deals
1/4
  • 1/4
  • 2 total stops
  • 42h 35m total
  • Thailand to Seattle
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (฿121,321 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿21,145 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 2 March 2026.
Use the filters below to find and compare flights from Thailand to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 11/3

23:50-19:40

1 stop33h 50m

Seattle/Tacoma Intl

Wed 29/4

23:10-22:40

1 stop33h 30m

฿22,385

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 11/3

23:50-19:40

1 stop33h 50m

Seattle/Tacoma Intl

Thu 19/3

22:30-23:00

1 stop34h 30m

฿23,222

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 22/5

07:00-01:29

2 stops32h 29m

Seattle/Tacoma Intl

Sun 31/5

16:30-04:35

1 stop22h 05m

฿26,323

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 6/6

07:35-10:20

1 stop16h 45m

Seattle/Tacoma Intl

Wed 26/8

19:56-10:00

2 stops24h 04m

฿26,881

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 1/6

07:35-10:20

1 stop16h 45m

Seattle/Tacoma Intl

Sun 23/8

19:55-11:05

2 stops25h 10m

฿27,160

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 29/5

13:25-20:05

1 stop20h 40m

Seattle/Tacoma Intl

Sun 31/5

23:10-12:10

1 stop23h 00m

฿28,865

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Mon 13/7

02:15-12:57

2 stops24h 42m

Seattle/Tacoma Intl

Sun 13/9

23:10-11:25

1 stop22h 15m

฿30,322

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 11/3

07:55-23:43

2 stops29h 48m

Seattle/Tacoma Intl

Tue 31/3

08:10-00:10

2 stops26h 00m

฿30,353

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 28/5

07:00-16:20

2 stops23h 20m

Seattle/Tacoma Intl

Fri 29/5

16:30-04:35

1 stop22h 05m

฿30,632

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 15/5

17:30-10:05

1 stop30h 35m

Seattle/Tacoma Intl

Mon 1/6

19:55-10:00

2 stops24h 05m

฿31,563

Flights are sorted by cheapest return flights first.

Deals found on 27/2

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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 ฿19,285). Flying from Thailand to Seattle in July is currently the most expensive (average of ฿23,594). 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 2 March 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

Crew

9.2

Overall

8.9

Boarding

8.9

Food

8.7

Comfort

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

Crew

9.2

Overall

8.9

Boarding

8.9

Food

8.7

Comfort

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
1,362 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Overall

8.9

Boarding

8.9

Food

8.7

Comfort

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
809 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Overall

8.9

Boarding

8.9

Food

8.7

Comfort

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
8,237 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Overall

8.9

Boarding

8.9

Food

8.7

Comfort

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
962 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Overall

8.9

Boarding

8.9

Food

8.7

Comfort

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 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 ฿26,881, Philippine Airlines can have you in Seattle from Thailand in 16h 45m. 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?

    ฿12,338 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 ฿14,561 and ฿14,749, 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 ฿19,285). Flying from Thailand to Seattle in July is currently the most expensive (average of ฿23,594). 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 2 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿20,004Average฿21,219FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
Asiana AirlinesCheapest฿20,786Average฿21,854FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
STARLUX AirlinesCheapest฿22,830Average฿26,557FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
China AirlinesCheapest฿23,174Average฿26,113FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
EVA AirCheapest฿24,657Average฿27,214FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿25,692Average฿28,903FlexibilityNo cancel feeOn-timeN/A
Search เดลต้า flights
Korean AirCheapest฿25,705Average฿30,411FlexibilityNo 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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