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Cheap flights from Thailand to Seattle from ฿16,773

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 19/9. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
21 Jul — 28 Jul1
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 21 June 2026.

Sat 3/1001:35
BKK
-
SEA
1 stop27h 40m
Asiana Airlines
Sat 27/300:10
SEA
-
BKK
1 stop33h 10m
Asiana Airlines
Deal found 18/6฿25,340
Mon 2/1123:55
BKK
-
SEA
1 stop29h 00m
Asiana Airlines
Sat 13/300:10
SEA
-
BKK
1 stop20h 05m
Asiana Airlines
Deal found 18/6฿25,471
Mon 2/1123:55
BKK
-
SEA
1 stop29h 00m
Asiana Airlines
Sun 14/300:10
SEA
-
BKK
1 stop31h 50m
Asiana Airlines
Deal found 19/6฿25,537
Mon 26/1012:20
BKK
-
SEA
1 stop16h 35m
Asiana Airlines
Mon 18/100:10
SEA
-
BKK
1 stop20h 05m
Asiana Airlines
Deal found 17/6฿25,603
Tue 20/1011:45
BKK
-
SEA
1 stop17h 30m
Asiana Airlines
Tue 27/1000:10
SEA
-
BKK
1 stop31h 50m
Asiana Airlines
Deal found 20/6฿25,865
Thu 22/1011:45
BKK
-
SEA
1 stop17h 30m
Asiana Airlines
Thu 5/1100:10
SEA
-
BKK
1 stop30h 50m
Asiana Airlines
Deal found 16/6฿26,062
Fri 9/1009:50
BKK
-
SEA
1 stop38h 50m
Korean Air
Thu 22/1012:50
SEA
-
BKK
1 stop18h 55m
Korean Air
Deal found 17/6฿26,259
Wed 7/1009:35
BKK
-
SEA
2 stops22h 57m
ANA
Sat 17/1010:30
SEA
-
BKK
2 stops29h 25m
ANA
Deal found 15/6฿26,390
Tue 6/1009:35
BKK
-
SEA
2 stops27h 51m
United Airlines
Thu 15/1016:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 19/6฿26,423
Tue 29/909:35
BKK
-
SEA
2 stops22h 57m
ANA
Mon 5/1010:30
SEA
-
BKK
2 stops29h 25m
ANA
Deal found 16/6฿26,489
Wed 4/1100:15
CNX
-
SEA
1 stop23h 45m
Korean Air
Tue 1/1211:00
SEA
-
CNX
1 stop20h 55m
Korean Air
Deal found 19/6฿26,949
Sat 14/1111:25
CNX
-
SEA
1 stop21h 45m
China Airlines
Sat 5/1200:10
SEA
-
CNX
1 stop19h 15m
China Airlines
Deal found 19/6฿28,163

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 21 June 2026.

Round-trip from

฿25,340

One-way from

฿16,740

Popular in

August

Cheapest in

March

Average price

฿28,787
Asiana Airlines
  • Asiana Airlines
  • 3/10-27/3
  • 2 total stops
  • 60h 50m total
  • Thailand to Seattle
Search Deals
China Airlines
  • China Airlines
  • 24/9
  • 1 total stop
  • 21h 55m total
  • Thailand to Seattle
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (฿99,103 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿13,812 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 21 June 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

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 7/12

12:20-13:55

1 stop16h 35m

Seattle/Tacoma Intl

Sun 27/12

00:10-22:00

1 stop30h 50m

฿27,113

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 3/7

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Mon 13/7

07:00-09:35

3 stops36h 35m

฿27,375

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 14/7

07:00-19:03

2 stops26h 03m

Seattle/Tacoma Intl

Sun 2/8

06:00-09:35

2 stops37h 35m

฿27,441

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 7/10

09:35-23:26

2 stops27h 51m

Seattle/Tacoma Intl

Sat 17/10

14:55-09:35

2 stops28h 40m

฿27,638

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 9/10

15:45-01:15

2 stops23h 30m

Seattle/Tacoma Intl

Thu 22/10

13:19-09:35

2 stops30h 16m

฿28,458

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 1/8

01:35-15:45

1 stop28h 10m

Seattle/Tacoma Intl

Fri 28/8

00:10-23:35

1 stop33h 25m

฿30,461

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 5/11

00:15-14:47

2 stops29h 32m

Seattle/Tacoma Intl

Tue 1/12

21:25-22:55

2 stops34h 30m

฿30,592

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 14/11

00:15-16:59

2 stops31h 44m

Seattle/Tacoma Intl

Mon 30/11

21:25-22:55

2 stops34h 30m

฿30,592

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 9/11

00:15-14:47

2 stops29h 32m

Seattle/Tacoma Intl

Fri 27/11

21:25-22:55

2 stops34h 30m

฿30,592

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Fri 6/11

00:15-14:47

2 stops29h 32m

Seattle/Tacoma Intl

Fri 27/11

21:25-22:55

2 stops34h 30m

฿30,592

Flights are sorted by cheapest return flights first.

Deals found on 16/6

Showing 1-10 of 58 resultsSorted by cheapest first
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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, October is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿16,904). Flying from Thailand to Seattle in November is currently the most expensive (average of ฿24,126). 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 far ahead should I book a flight from Thailand to Seattle?

The price you pay for your flight from Thailand to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 21 June 2026.
Read through reviews of airlines operating flights from Thailand to Seattle, such as STARLUX Airlines,EVA Air, andAsiana 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

8.9

Comfort

8.9

Entertainment

8.8

Crew

9.2

Food

8.6

Overall

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
STARLUX Airlines
8.8
Very Good
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.9

Entertainment

8.8

Crew

9.2

Food

8.6

Overall

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
EVA Air
8.5
Very Good
1,478 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.9

Entertainment

8.8

Crew

9.2

Food

8.6

Overall

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
Asiana Airlines
8.1
Very Good
545 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.9

Entertainment

8.8

Crew

9.2

Food

8.6

Overall

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
เดลต้า
7.8
Good
8,421 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.9

Entertainment

8.8

Crew

9.2

Food

8.6

Overall

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
Philippine Airlines
7.3
Good
1,002 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.9

Entertainment

8.8

Crew

9.2

Food

8.6

Overall

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.

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 ฿27,113, Korean Air 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?

    ฿13,062 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 STARLUX Airlines and China Airlines, with prices starting from ฿14,147 and ฿15,539, 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, Bangkok Don Mueang Intl - Seattle/Tacoma Intl and Chiang Mai - 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, October is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿16,904). Flying from Thailand to Seattle in November is currently the most expensive (average of ฿24,126). 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 6 airlines flying from Thailand to Seattle

Discover the top 6 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 21 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿21,178Average฿22,522FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
China AirlinesCheapest฿21,914Average฿26,427FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Asiana AirlinesCheapest฿22,006Average฿24,343FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
STARLUX AirlinesCheapest฿24,170Average฿27,025FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapest฿26,104Average฿30,023FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿30,015Average฿30,212FlexibilityNo cancel feeOn-timeN/A
Search เดลต้า 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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