Find flights
When to book
Airlines
FAQs

Cheap flights from Thailand to Seattle from ฿15,653

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
31 Jul — 7 Aug1
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 1 July 2026.

Thu 1/1023:30
BKK
-
SEA
1 stop25h 10m
Korean Air
Wed 14/1012:50
SEA
-
BKK
1 stop18h 55m
Korean Air
Deal found 1/7฿25,323
Tue 6/1009:50
BKK
-
SEA
1 stop17h 24m
เดลต้า
Thu 15/1013:00
SEA
-
BKK
1 stop20h 35m
เดลต้า
Deal found 26/6฿25,589
Wed 23/923:30
BKK
-
SEA
1 stop28h 07m
เดลต้า
Wed 28/1013:40
SEA
-
BKK
1 stop21h 05m
เดลต้า
Deal found 29/6฿25,656
Mon 19/1002:35
BKK
-
SEA
1 stop22h 05m
Korean Air
Wed 28/1012:00
SEA
-
BKK
1 stop21h 20m
Korean Air
Deal found 28/6฿25,689
Sun 4/1023:30
BKK
-
SEA
1 stop27h 44m
เดลต้า
Sun 4/413:05
SEA
-
BKK
1 stop20h 30m
เดลต้า
Deal found 30/6฿25,888
Sun 13/1212:20
BKK
-
SEA
1 stop16h 35m
Asiana Airlines
Sun 27/1200:10
SEA
-
BKK
1 stop20h 05m
Asiana Airlines
Deal found 27/6฿25,955
Sat 3/1002:35
BKK
-
SEA
1 stop22h 05m
Korean Air
Sun 28/312:50
SEA
-
BKK
1 stop20h 45m
Korean Air
Deal found 30/6฿25,988
Fri 21/809:50
BKK
-
SEA
1 stop17h 47m
เดลต้า
Thu 3/913:00
SEA
-
BKK
1 stop18h 45m
เดลต้า
Deal found 26/6฿26,154
Thu 20/813:20
BKK
-
SEA
1 stop20h 25m
China Airlines
Thu 3/901:55
SEA
-
BKK
1 stop17h 50m
China Airlines
Deal found 1/7฿26,287
Mon 30/1102:35
BKK
-
SEA
1 stop30h 35m
China Airlines
Sun 27/1200:10
SEA
-
BKK
1 stop18h 40m
China Airlines
Deal found 1/7฿26,387
Sun 16/813:20
BKK
-
SEA
1 stop20h 25m
China Airlines
Sat 29/801:55
SEA
-
BKK
1 stop20h 15m
China Airlines
Deal found 30/6฿26,453
Wed 8/711:35
CNX
-
SEA
1 stop22h 15m
EVA Air
Wed 9/901:30
SEA
-
CNX
1 stop18h 55m
EVA Air
Deal found 28/6฿30,142

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 1 July 2026.

Round-trip from

฿25,323

One-way from

฿15,653

Popular in

August

Cheapest in

March

Average price

฿32,468
Korean Air
  • Korean Air
  • 1/10-14/10
  • 2 total stops
  • 44h 05m total
  • Thailand to Seattle
Search Deals
China Airlines
  • China Airlines
  • 19/11
  • 1 total stop
  • 21h 45m total
  • Thailand to Seattle
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (฿100,577 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿14,076 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 1 July 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

Wed 21/10

02:35-13:14

1 stop24h 39m

Seattle/Tacoma Intl

Fri 6/11

13:00-13:25

1 stop33h 25m

฿25,589

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/10

09:50-13:14

1 stop17h 24m

Seattle/Tacoma Intl

Thu 15/10

13:00-23:35

1 stop20h 35m

฿25,589

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 13/10

21:40-10:40

1 stop27h 00m

Seattle/Tacoma Intl

Wed 14/10

12:50-23:35

1 stop20h 45m

฿25,689
Fastest return journey

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 21/8

09:50-13:37

1 stop17h 47m

Seattle/Tacoma Intl

Thu 3/9

13:00-21:45

1 stop18h 45m

฿26,154

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 26/8

07:00-21:58

2 stops28h 58m

Seattle/Tacoma Intl

Fri 28/8

16:30-04:35

1 stop22h 05m

฿26,719

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/10

09:35-23:26

2 stops27h 51m

Seattle/Tacoma Intl

Thu 15/10

16:30-04:35

1 stop22h 05m

฿26,752

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 1/12

12:20-13:55

1 stop16h 35m

Seattle/Tacoma Intl

Sun 27/12

00:10-22:00

1 stop30h 50m

฿26,819

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 4/10

09:35-21:01

2 stops49h 26m

Seattle/Tacoma Intl

Sun 21/3

06:29-11:30

2 stops39h 01m

฿27,184

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 24/9

15:45-01:15

2 stops23h 30m

Seattle/Tacoma Intl

Sun 27/9

16:30-04:35

1 stop22h 05m

฿27,284

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 7/10

09:35-21:01

2 stops25h 26m

Seattle/Tacoma Intl

Sat 17/10

14:55-09:35

2 stops28h 40m

฿27,683

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 51 resultsSorted by cheapest first
1
2
3
...
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, October is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿17,115). Flying from Thailand to Seattle in November is currently the most expensive (average of ฿24,426). 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 11 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 1 July 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
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Food

8.7

Crew

9.2

Comfort

8.9

Boarding

8.9

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
8.9
Very Good
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Food

8.7

Crew

9.2

Comfort

8.9

Boarding

8.9

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
1,484 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Food

8.7

Crew

9.2

Comfort

8.9

Boarding

8.9

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
550 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Food

8.7

Crew

9.2

Comfort

8.9

Boarding

8.9

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
8,452 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Food

8.7

Crew

9.2

Comfort

8.9

Boarding

8.9

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
1,005 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Food

8.7

Crew

9.2

Comfort

8.9

Boarding

8.9

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 ฿35,227, เดลต้า can have you in Seattle from Thailand in 23h 30m. The distance from Thailand to Seattle is about 11571 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?

    ฿13,225 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 ฿14,323 and ฿15,732, 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, October is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿17,115). Flying from Thailand to Seattle in November is currently the most expensive (average of ฿24,426). 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 1 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿21,442Average฿22,802FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
Asiana AirlinesCheapest฿22,280Average฿24,646FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
China AirlinesCheapest฿24,434Average฿26,788FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
STARLUX AirlinesCheapest฿24,471Average฿27,361FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapest฿26,429Average฿30,397FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿30,389Average฿30,588FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.