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Cheap flights from Thailand to Seattle from ฿16,116

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
12 May — 19 May1
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 12 April 2026.

Mon 5/1009:35
BKK
-
SEA
2 stops42h 21m
United Airlines
Tue 20/1017:33
SEA
-
BKK
2 stops26h 02m
United Airlines
Deal found 8/4฿22,383
Fri 9/1015:45
BKK
-
SEA
3 stops38h 42m
United Airlines
Mon 19/1018:51
SEA
-
BKK
2 stops24h 44m
United Airlines
Deal found 8/4฿22,479
Wed 7/1009:35
BKK
-
SEA
2 stops29h 32m
United Airlines
Sat 17/1008:35
SEA
-
BKK
2 stops35h 00m
United Airlines
Deal found 7/4฿22,543
Wed 7/1009:35
BKK
-
SEA
2 stops25h 15m
ANA
Wed 21/1016:30
SEA
-
BKK
1 stop23h 25m
ANA
Deal found 8/4฿22,575
Thu 17/1214:20
BKK
-
SEA
1 stop38h 00m
ANA
Thu 14/110:35
SEA
-
BKK
2 stops28h 55m
ANA
Deal found 11/4฿22,671
Fri 9/1015:45
BKK
-
SEA
3 stops38h 42m
United Airlines
Sun 18/1005:15
SEA
-
BKK
2 stops38h 20m
United Airlines
Deal found 8/4฿22,735
Fri 5/615:45
BKK
-
SEA
2 stops45h 34m
United Airlines
Mon 23/1106:57
SEA
-
BKK
2 stops37h 28m
United Airlines
Deal found 9/4฿22,991
Sat 10/1015:45
BKK
-
SEA
2 stops31h 37m
United Airlines
Thu 22/1014:52
SEA
-
BKK
2 stops28h 43m
United Airlines
Deal found 8/4฿23,023
Thu 15/1015:45
BKK
-
SEA
2 stops44h 11m
United Airlines
Sun 18/1008:35
SEA
-
BKK
2 stops35h 00m
United Airlines
Deal found 10/4฿23,087
Wed 3/601:20
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Mon 23/1100:10
SEA
-
BKK
1 stop30h 50m
Asiana Airlines
Deal found 8/4฿24,462
Sat 10/1017:20
CNX
-
SEA
1 stop36h 50m
STARLUX Airlines
Sun 18/1001:15
SEA
-
CNX
1 stop25h 05m
STARLUX Airlines
Deal found 8/4฿28,587
Tue 6/1011:35
CNX
-
SEA
1 stop21h 45m
EVA Air
Tue 20/1001:30
SEA
-
CNX
1 stop18h 55m
EVA Air
Deal found 8/4฿28,778

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 12 April 2026.

Round-trip from

฿22,383

One-way from

฿16,116

Popular in

July

Cheapest in

March

Average price

฿27,563
United Airlines
  • United Airlines
  • 6/10-22/10
  • 4 total stops
  • 70h 13m total
  • Thailand to Seattle
Search Deals
Philippine Airlines
  • Philippine Airlines
  • 20/5
  • 1 total stop
  • 23h 45m total
  • Thailand to Seattle
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (฿134,530 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿21,673 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 12 April 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

Fri 5/6

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Sat 5/9

19:35-09:35

2 stops24h 00m

฿25,005

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 1/6

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Tue 1/9

17:22-09:35

2 stops26h 13m

฿25,261

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 5/6

21:40-11:00

1 stop27h 20m

Seattle/Tacoma Intl

Mon 23/11

11:00-00:45

1 stop22h 45m

฿26,124

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 5/6

23:30-13:25

1 stop27h 55m

Seattle/Tacoma Intl

Sat 5/9

13:00-01:05

1 stop22h 05m

฿26,252

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 8/10

01:20-14:55

1 stop27h 35m

Seattle/Tacoma Intl

Fri 23/10

00:55-22:00

1 stop31h 05m

฿26,252

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 7/10

23:30-10:40

1 stop25h 10m

Seattle/Tacoma Intl

Sat 17/10

12:50-21:45

1 stop18h 55m

฿26,476

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 7/10

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Sat 17/10

08:35-09:35

2 stops35h 00m

฿27,339

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 31/5

02:35-15:05

2 stops26h 30m

Seattle/Tacoma Intl

Tue 1/9

21:25-23:35

2 stops36h 10m

฿29,930

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 8/6

23:30-14:50

2 stops29h 20m

Seattle/Tacoma Intl

Sat 21/11

21:25-00:45

2 stops36h 20m

฿29,993

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 7/6

23:30-20:34

2 stops35h 04m

Seattle/Tacoma Intl

Wed 18/11

13:00-23:20

1 stop19h 20m

฿29,993

Flights are sorted by cheapest return flights first.

Deals found on 8/4

Showing 1-10 of 58 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, October is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿20,241). Flying from Thailand to Seattle in July is currently the most expensive (average of ฿24,366). 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 12 April 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

Entertainment

8.8

Boarding

9.0

Food

8.7

Comfort

8.9

Overall

8.9

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

Entertainment

8.8

Boarding

9.0

Food

8.7

Comfort

8.9

Overall

8.9

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
1,407 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Entertainment

8.8

Boarding

9.0

Food

8.7

Comfort

8.9

Overall

8.9

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
816 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Entertainment

8.8

Boarding

9.0

Food

8.7

Comfort

8.9

Overall

8.9

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
515 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Entertainment

8.8

Boarding

9.0

Food

8.7

Comfort

8.9

Overall

8.9

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
8,410 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Entertainment

8.8

Boarding

9.0

Food

8.7

Comfort

8.9

Overall

8.9

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 ฿25,005, United Airlines can have you in Seattle from Thailand in 18h 50m. 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?

    ฿12,725 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 ฿13,781 and ฿15,017, 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 ฿20,241). Flying from Thailand to Seattle in July is currently the most expensive (average of ฿24,366). 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 12 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿20,631Average฿21,940FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
Asiana AirlinesCheapest฿21,438Average฿22,995FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
China AirlinesCheapest฿23,510Average฿27,122FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
STARLUX AirlinesCheapest฿23,545Average฿26,748FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapest฿25,430Average฿30,046FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿26,740Average฿29,918FlexibilityNo 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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