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Cheap flights from Thailand to Seattle from ฿14,961

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
15 Apr — 22 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 16 March 2026.

Fri 16/1013:25
BKK
-
SEA
1 stop20h 40m
Philippine Airlines
Fri 6/1123:55
SEA
-
BKK
1 stop21h 10m
Philippine Airlines
Deal found 11/3฿19,314
Mon 1/623:40
BKK
-
SEA
1 stop34h 25m
Philippine Airlines
Tue 1/923:10
SEA
-
BKK
1 stop23h 00m
Philippine Airlines
Deal found 15/3฿19,734
Wed 24/623:40
BKK
-
SEA
1 stop34h 25m
Philippine Airlines
Wed 23/923:10
SEA
-
BKK
1 stop29h 20m
Philippine Airlines
Deal found 14/3฿20,121
Tue 9/613:25
BKK
-
SEA
1 stop20h 40m
Philippine Airlines
Tue 8/923:10
SEA
-
BKK
1 stop19h 45m
Philippine Airlines
Deal found 14/3฿20,217
Wed 10/613:25
BKK
-
SEA
1 stop20h 40m
Philippine Airlines
Tue 8/923:10
SEA
-
BKK
1 stop19h 45m
Philippine Airlines
Deal found 14/3฿20,314
Sun 3/501:20
BKK
-
SEA
1 stop27h 35m
Multiple Airlines
Sun 17/500:55
SEA
-
BKK
1 stop30h 50m
Multiple Airlines
Deal found 12/3฿20,443
Mon 27/411:45
BKK
-
SEA
1 stop17h 10m
Asiana Airlines
Sun 3/500:55
SEA
-
BKK
1 stop19h 45m
Asiana Airlines
Deal found 13/3฿20,475
Wed 10/613:25
BKK
-
SEA
1 stop20h 40m
Philippine Airlines
Sun 6/923:10
SEA
-
BKK
1 stop19h 45m
Philippine Airlines
Deal found 14/3฿20,508
Sat 2/501:20
BKK
-
SEA
1 stop27h 35m
Multiple Airlines
Sun 17/500:55
SEA
-
BKK
1 stop30h 50m
Multiple Airlines
Deal found 13/3฿20,701
Thu 9/709:35
CNX
-
SEA
2 stops24h 30m
Multiple Airlines
Tue 8/923:10
SEA
-
CNX
2 stops33h 40m
Multiple Airlines
Deal found 14/3฿24,119
Thu 10/911:20
CNX
-
SEA
1 stop22h 25m
China Airlines
Sun 13/901:55
SEA
-
CNX
1 stop18h 25m
China Airlines
Deal found 13/3฿24,732
Thu 17/911:20
CNX
-
SEA
1 stop21h 55m
China Airlines
Sun 8/1100:10
SEA
-
CNX
1 stop19h 15m
China Airlines
Deal found 13/3฿25,699

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 16 March 2026.

Round-trip from

฿19,734

One-way from

฿14,446

Popular in

July

Cheapest in

March

Average price

฿23,925
Philippine Airlines
  • Philippine Airlines
  • 1/6-1/9
  • 2 total stops
  • 57h 25m total
  • Thailand to Seattle
Search Deals
24/6
  • 24/6
  • 2 total stops
  • 47h 35m total
  • Thailand to Seattle
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (฿128,108 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿22,087 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 16 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

Cheapest return flight
Fastest return journey

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 10/9

11:20-19:45

1 stop22h 25m

Seattle/Tacoma Intl

Sun 13/9

01:55-10:20

1 stop18h 25m

฿24,732

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 6/6

21:40-11:00

1 stop27h 20m

Seattle/Tacoma Intl

Fri 13/11

07:20-00:45

2 stops26h 25m

฿25,409

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 26/4

21:40-13:07

1 stop29h 27m

Seattle/Tacoma Intl

Sun 3/5

13:00-13:35

1 stop34h 35m

฿26,150

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 1/5

13:25-20:05

1 stop20h 40m

Seattle/Tacoma Intl

Tue 2/6

23:10-22:40

1 stop33h 30m

฿26,408

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 13/5

20:00-19:30

2 stops37h 30m

Seattle/Tacoma Intl

Tue 30/6

00:50-10:25

1 stop19h 35m

฿26,860

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 7/6

15:45-01:29

2 stops23h 44m

Seattle/Tacoma Intl

Tue 10/11

06:57-00:20

2 stops26h 23m

฿27,537

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 28/4

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Wed 29/4

17:45-09:35

2 stops49h 50m

฿29,762

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 28/4

21:40-10:40

1 stop27h 00m

Seattle/Tacoma Intl

Wed 29/4

12:50-21:45

1 stop18h 55m

฿30,149

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 10/9

11:55-19:40

2 stops21h 45m

Seattle/Tacoma Intl

Sun 13/9

01:30-13:45

2 stops46h 15m

฿30,245

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 28/4

11:45-14:55

1 stop17h 10m

Seattle/Tacoma Intl

Tue 28/4

00:55-23:20

1 stop32h 25m

฿30,342

Flights are sorted by cheapest return flights first.

Deals found on 15/3

Showing 1-10 of 55 resultsSorted by cheapest first
1
2
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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, June is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿20,121). Flying from Thailand to Seattle in July is currently the most expensive (average of ฿24,538). 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 16 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

Comfort

8.9

Boarding

9.0

Entertainment

8.8

Overall

8.9

Food

8.7

Crew

9.2

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

8.9

Boarding

9.0

Entertainment

8.8

Overall

8.9

Food

8.7

Crew

9.2

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
8.5
Very Good
1,374 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Boarding

9.0

Entertainment

8.8

Overall

8.9

Food

8.7

Crew

9.2

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
814 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Boarding

9.0

Entertainment

8.8

Overall

8.9

Food

8.7

Crew

9.2

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.
Asiana Airlines
8.1
Very Good
506 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Boarding

9.0

Entertainment

8.8

Overall

8.9

Food

8.7

Crew

9.2

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
8,289 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Boarding

9.0

Entertainment

8.8

Overall

8.9

Food

8.7

Crew

9.2

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 ฿26,408, China Airlines can have you in Seattle from Thailand in 20h 40m. 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?

    ฿12,832 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 ฿15,143 and ฿15,339, 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, June is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿20,121). Flying from Thailand to Seattle in July is currently the most expensive (average of ฿24,538). 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 16 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿20,805Average฿22,124FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
Asiana AirlinesCheapest฿21,618Average฿22,748FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
China AirlinesCheapest฿23,708Average฿27,153FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
STARLUX AirlinesCheapest฿23,743Average฿27,619FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapest฿25,643Average฿29,391FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿26,719Average฿30,059FlexibilityNo cancel feeOn-timeN/A
Search เดลต้า flights
Korean AirCheapest฿26,733Average฿31,627FlexibilityNo 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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