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Cheap flights from Thailand to Seattle from ฿15,756

BKK — SEA
4 Dec — 11 Dec1
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

Fri 18/1201:05 -
1 stop22h 15m
Sat 9/110:20 -
1 stop37h 00m
Deal found 31/10฿25,810
Mon 9/1116:20 -
1 stop31h 00m
Sat 2/110:20 -
1 stop22h 15m
Deal found 4/11฿25,844
Sun 22/1121:40 -
1 stop31h 30m
Sun 29/1111:00 -
1 stop22h 20m
Deal found 1/11฿26,586
Mon 2/1116:20 -
1 stop31h 00m
Tue 1/1210:20 -
1 stop37h 00m
Deal found 31/10฿26,924
Sun 8/1101:05 -
1 stop28h 05m
Sun 29/1111:00 -
1 stop22h 20m
Deal found 4/11฿27,025
Tue 24/1121:40 -
1 stop26h 25m
Fri 4/1211:00 -
1 stop35h 25m
Deal found 1/11฿27,126
Sun 1/1117:50 -
1 stop15h 20m
Sun 29/1100:10 -
1 stop25h 35m
Deal found 31/10฿27,295
Mon 16/1102:35 -
1 stop30h 35m
Thu 3/1200:10 -
1 stop25h 35m
Deal found 30/10฿27,362
Fri 27/1116:20 -
1 stop31h 00m
Tue 1/1210:20 -
1 stop22h 15m
Deal found 1/11฿27,497
Thu 19/1101:05 -
1 stop23h 00m
Fri 4/1211:00 -
1 stop35h 25m
Deal found 30/10฿27,598
Sun 22/1101:05 -
1 stop25h 46m
Fri 4/1212:35 -
1 stop33h 50m
Deal found 1/11฿28,172
Sun 8/1101:05 -
1 stop25h 46m
Wed 25/1112:30 -
1 stop19h 35m
Deal found 4/11฿28,206

Find flight deals from Thailand to Seattle

Round-trip from

฿25,810

One-way from

฿15,756

Popular in

August

Cheapest in

March

Average price

฿29,589
ไห่หนานแอร์ไลน์
  • ไห่หนานแอร์ไลน์
  • 18/12-9/1
  • 2 total stops
  • 59h 15m total
  • Thailand to Seattle
Search Deals
เดลต้า
  • เดลต้า
  • 18/11-31/12
  • 1 total stop
  • 26h 31m total
  • Thailand to Seattle
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (฿61,545 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿12,208 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2026
Search Deals

Cheapflights Fare Finder

 
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

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 24/12

00:20-11:56

1 stop26h 36m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,756
Fastest return journey

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Wed 18/11

00:20-11:51

1 stop26h 31m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,756

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 24/12

00:20-14:10

1 stop28h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,824

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Mon 21/12

00:20-14:10

1 stop28h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,824

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Mon 22/2

21:40-11:50

1 stop29h 10m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿16,532

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Sun 15/11

23:40-18:45

1 stop34h 05m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,241

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Mon 21/12

00:20-16:44

2 stops31h 24m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,510

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Wed 18/11

01:05-22:04

2 stops35h 59m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,510

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Mon 15/2

21:40-17:00

2 stops34h 20m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,510

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Tue 17/11

23:15-20:09

2 stops35h 54m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,510

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Showing 1-10 of 33 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

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, March is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿24,461). Flying from Thailand to Seattle in August is currently the most expensive (average of ฿33,773). 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 77 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Seattle

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
8.8
Very Good
Check prices

Overall

8.8

Comfort

8.8

Boarding

8.8

Food

8.6

Crew

9.1

Entertainment

8.6

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
STARLUX Airlines
8.8
Very Good
STARLUX Airlines
8.8
Very Good
Check prices

Overall

8.8

Comfort

8.8

Boarding

8.8

Food

8.6

Crew

9.1

Entertainment

8.6

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
EVA Air
8.5
Very Good
1,552 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Overall

8.8

Comfort

8.8

Boarding

8.8

Food

8.6

Crew

9.1

Entertainment

8.6

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
China Airlines
8.3
Very Good
854 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Overall

8.8

Comfort

8.8

Boarding

8.8

Food

8.6

Crew

9.1

Entertainment

8.6

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
Asiana Airlines
8.1
Very Good
570 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Overall

8.8

Comfort

8.8

Boarding

8.8

Food

8.6

Crew

9.1

Entertainment

8.6

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
Philippine Airlines
7.3
Good
1,039 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Overall

8.8

Comfort

8.8

Boarding

8.8

Food

8.6

Crew

9.1

Entertainment

8.6

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

Related info for your journey

  • 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 ฿25,810, ไห่หนานแอร์ไลน์ can have you in Seattle from Thailand in 22h 15m. 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?

    ฿14,541 is the cheapest one-way deal found within the past few days, from STARLUX Airlines. You may also be able to find cheap deals on Korean Air and China Airlines, with prices starting from ฿15,759 and ฿15,972, 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, March is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿24,461). Flying from Thailand to Seattle in August is currently the most expensive (average of ฿33,773). 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

Alternative routes for Thailand to Seattle

Chiang Mai to Seattle flights
Chiang Mai to Portland flights

Top 5 airlines flying from Thailand to Seattle

AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿21,803Average฿23,230FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
China AirlinesCheapest฿22,524Average฿29,977FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Asiana AirlinesCheapest฿22,620Average฿24,588FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
STARLUX AirlinesCheapest฿24,252Average฿30,060FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapest฿26,832Average฿30,878FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

Fly with Cheapflights

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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