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Cheap flights from Thailand to Seattle from ฿16,382

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
6 Jul — 13 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 6 June 2026.

Wed 21/1001:35
BKK
-
SEA
1 stop27h 40m
Asiana Airlines
Thu 5/1100:10
SEA
-
BKK
1 stop30h 50m
Asiana Airlines
Deal found 5/6฿25,831
Wed 7/1001:35
BKK
-
SEA
1 stop27h 40m
Asiana Airlines
Mon 19/1000:10
SEA
-
BKK
1 stop20h 30m
Asiana Airlines
Deal found 5/6฿25,897
Thu 18/609:35
BKK
-
SEA
2 stops43h 01m
United Airlines
Wed 9/916:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 3/6฿26,256
Fri 19/613:55
BKK
-
SEA
1 stop38h 30m
ANA
Thu 9/708:45
SEA
-
BKK
2 stops23h 30m
ANA
Deal found 3/6฿26,289
Mon 15/609:35
BKK
-
SEA
2 stops26h 33m
United Airlines
Tue 30/616:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 3/6฿26,354
Fri 5/607:00
BKK
-
SEA
2 stops26h 03m
United Airlines
Sat 5/916:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 2/6฿26,387
Mon 15/609:35
BKK
-
SEA
2 stops22h 55m
ANA
Sun 10/115:45
SEA
-
BKK
1 stop33h 35m
ANA
Deal found 4/6฿26,452
Tue 6/1009:35
BKK
-
SEA
2 stops25h 09m
United Airlines
Thu 15/1016:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 4/6฿26,518
Thu 17/909:35
BKK
-
SEA
2 stops38h 24m
United Airlines
Mon 21/916:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 5/6฿26,583
Sat 7/1100:15
CNX
-
SEA
1 stop23h 45m
Korean Air
Sun 29/1111:00
SEA
-
CNX
1 stop20h 55m
Korean Air
Deal found 4/6฿26,747
Wed 4/1100:15
CNX
-
SEA
1 stop23h 45m
Korean Air
Sun 29/1111:00
SEA
-
CNX
1 stop20h 55m
Korean Air
Deal found 4/6฿26,845
Thu 25/617:20
CNX
-
SEA
1 stop36h 50m
STARLUX Airlines
Thu 3/901:15
SEA
-
CNX
1 stop25h 05m
STARLUX Airlines
Deal found 2/6฿27,531

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 6 June 2026.

Round-trip from

฿25,831

One-way from

฿16,382

Popular in

July

Cheapest in

March

Average price

฿29,428
Asiana Airlines
  • Asiana Airlines
  • 21/10-5/11
  • 2 total stops
  • 58h 30m total
  • Thailand to Seattle
Search Deals
STARLUX Airlines
  • STARLUX Airlines
  • 1/10
  • 1 total stop
  • 36h 50m total
  • Thailand to Seattle
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (฿124,444 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿17,987 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 6 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

Thu 17/9

09:35-09:59

2 stops38h 24m

Seattle/Tacoma Intl

Mon 21/9

16:30-04:35

1 stop22h 05m

฿26,583

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 4/10

02:35-10:40

1 stop22h 05m

Seattle/Tacoma Intl

Tue 20/10

12:50-21:45

1 stop18h 55m

฿26,747

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 7/10

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Sat 17/10

15:29-09:35

2 stops28h 06m

฿26,747

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 3/10

07:00-20:44

2 stops27h 44m

Seattle/Tacoma Intl

Mon 22/2

15:45-05:10

1 stop22h 25m

฿26,779

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 25/10

00:55-10:00

1 stop23h 05m

Seattle/Tacoma Intl

Fri 19/2

11:00-23:20

1 stop21h 20m

฿26,845

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 23/6

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Tue 14/7

15:33-09:35

3 stops28h 02m

฿27,139

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 7/10

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Thu 22/10

07:11-23:55

2 stops26h 44m

฿27,204

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 17/7

07:00-19:38

2 stops50h 38m

Seattle/Tacoma Intl

Sun 26/7

06:00-09:35

2 stops37h 35m

฿27,499

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 3/10

07:00-21:01

2 stops28h 01m

Seattle/Tacoma Intl

Sun 4/10

07:11-09:35

2 stops36h 24m

฿27,597

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 22/6

02:40-19:15

1 stop30h 35m

Seattle/Tacoma Intl

Mon 29/6

01:15-01:25

1 stop34h 10m

฿28,905

Flights are sorted by cheapest return flights first.

Deals found on 6/6

Showing 1-10 of 55 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 ฿16,839). Flying from Thailand to Seattle in November is currently the most expensive (average of ฿24,033). 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 67 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 6 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
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Food

8.6

Crew

9.1

Boarding

8.9

Comfort

8.9

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
STARLUX Airlines
8.9
Very Good
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Food

8.6

Crew

9.1

Boarding

8.9

Comfort

8.9

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
EVA Air
8.5
Very Good
1,464 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Food

8.6

Crew

9.1

Boarding

8.9

Comfort

8.9

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
Asiana Airlines
8.1
Very Good
539 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Food

8.6

Crew

9.1

Boarding

8.9

Comfort

8.9

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
เดลต้า
7.9
Good
8,395 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Food

8.6

Crew

9.1

Boarding

8.9

Comfort

8.9

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
Philippine Airlines
7.3
Good
999 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Food

8.6

Crew

9.1

Boarding

8.9

Comfort

8.9

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat

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 ฿26,747, United Airlines can have you in Seattle from Thailand in 22h 05m. 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?

    ฿13,012 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 ฿14,092 and ฿15,479, 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 ฿16,839). Flying from Thailand to Seattle in November is currently the most expensive (average of ฿24,033). 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 6 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿21,097Average฿22,435FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
China AirlinesCheapest฿21,829Average฿26,325FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Asiana AirlinesCheapest฿21,921Average฿24,250FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
STARLUX AirlinesCheapest฿24,077Average฿26,686FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapest฿26,004Average฿29,760FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿29,899Average฿30,096FlexibilityNo 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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