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$436+ Cheap flights from Thailand to Seattle (SEA)

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Thailand to Seattle

Keep the following information in mind while searching for Thailand to Seattle flight deals. Data was last updated August 20, 2025.

Round-trip from

$583
(oojo)

One-way from

$436
(oojo)

Popular in

July

Cheapest in

February

Average price

$1,069
From Thailand to Seattle/Tacoma Intl
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One-way flight from Thailand to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($125 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Thailand to Seattle

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 August 20, 2025.

This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/911:20 pmBKK - SEA
1 stop33h 55mPhilippine Airlines
Wed 11/129:30 pmSEA - BKK
1 stop29h 20mPhilippine Airlines
Deal found 8/18$583
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/141:30 pmBKK - SEA
1 stop19h 45mPhilippine Airlines
Sun 9/2111:35 pmSEA - BKK
1 stop28h 05mPhilippine Airlines
Deal found 8/18$611
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/256:40 pmBKK - SEA
1 stop38h 55mPhilippine Airlines
Fri 11/79:30 pmSEA - BKK
1 stop29h 20mPhilippine Airlines
Deal found 8/18$624
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:40 pmBKK - SEA
1 stop38h 35mPhilippine Airlines
Wed 10/811:35 pmSEA - BKK
1 stop28h 05mPhilippine Airlines
Deal found 8/18$631
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1311:35 pmBKK - SEA
1 stop34h 00mPhilippine Airlines
Fri 1/29:30 pmSEA - BKK
1 stop34h 15mPhilippine Airlines
Deal found 8/18$647
This Gurufare deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1311:20 pmBKK - SEA
1 stop33h 55mPhilippine Airlines
Sun 9/2111:35 pmSEA - BKK
1 stop28h 05mPhilippine Airlines
Deal found 8/18$655
This Trip.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/31:30 pmBKK - SEA
1 stop19h 45mPhilippine Airlines
Wed 10/1511:35 pmSEA - BKK
1 stop22h 40mPhilippine Airlines
Deal found 8/18$663
This Gurufare deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/171:30 pmBKK - SEA
1 stop19h 45mPhilippine Airlines
Wed 10/811:35 pmSEA - BKK
1 stop32h 50mPhilippine Airlines
Deal found 8/20$665
This Philippine Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2011:20 pmBKK - SEA
1 stop33h 55mPhilippine Airlines
Wed 10/811:35 pmSEA - BKK
1 stop22h 40mPhilippine Airlines
Deal found 8/20$667
This Trip.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/172:35 amBKK - SEA
1 stop23h 55mMultiple Airlines
Sun 12/712:10 amSEA - BKK
1 stop30h 20mMultiple Airlines
Deal found 8/20$669
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:40 pmBKK - SEA
1 stop38h 35mPhilippine Airlines
Fri 9/1911:35 pmSEA - BKK
1 stop22h 40mPhilippine Airlines
Deal found 8/18$671
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/141:30 pmBKK - SEA
1 stop19h 45mPhilippine Airlines
Fri 9/1911:35 pmSEA - BKK
1 stop22h 40mPhilippine Airlines
Deal found 8/18$672

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Thailand to Seattle that are best for you.

Fly from

Thailand

Fly to

Seattle

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 9/17

1:30 pm-7:15 pm

1 stop19h 45m

Seattle/Tacoma Intl

Wed 10/8

11:35 pm-5:40 pm

1 stop28h 05m

$631

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 1/21

6:45 pm-6:35 pm

1 stop38h 50m

Seattle/Tacoma Intl

Sun 4/12

11:55 pm-4:45 pm

1 stop26h 50m

$667

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 9/20

11:20 pm-7:15 pm

1 stop33h 55m

Seattle/Tacoma Intl

Wed 10/8

11:35 pm-12:15 pm

1 stop22h 40m

$667

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 1/21

6:45 pm-6:35 pm

1 stop38h 50m

Seattle/Tacoma Intl

Wed 4/15

11:55 pm-4:45 pm

1 stop26h 50m

$667

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 1/21

6:45 pm-6:35 pm

1 stop38h 50m

Seattle/Tacoma Intl

Wed 4/8

11:55 pm-9:50 pm

1 stop31h 55m

$667

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 1/21

11:35 pm-6:35 pm

1 stop34h 00m

Seattle/Tacoma Intl

Fri 4/17

11:55 pm-12:05 pm

1 stop22h 10m

$667

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 1/21

11:35 pm-6:35 pm

1 stop34h 00m

Seattle/Tacoma Intl

Fri 4/10

11:55 pm-4:45 pm

1 stop26h 50m

$667

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 9/20

11:20 pm-7:15 pm

1 stop33h 55m

Seattle/Tacoma Intl

Sun 10/5

11:35 pm-12:15 pm

1 stop22h 40m

$667

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 9/20

11:20 pm-7:15 pm

1 stop33h 55m

Seattle/Tacoma Intl

Fri 10/10

11:35 pm-10:25 pm

1 stop32h 50m

$667

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 1/21

11:35 pm-6:35 pm

1 stop34h 00m

Seattle/Tacoma Intl

Wed 4/1

11:55 pm-4:45 pm

1 stop26h 50m

$669

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 58 results
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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 round-trip 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, January is the cheapest month in which you can book a flight from Thailand to Seattle (average of $238). Flying from Thailand to Seattle in June is currently the most expensive (average of $388). 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.

What is the cheapest time of day to fly from TH to SEA?

Find hourly flight availability from Thailand to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

When flying from Thailand to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 August 20, 2025.
See what other customers who have flown with STARLUX Airlines, EVA Air, and Korean Air from Thailand to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.0
Wonderful
207 reviews

Crew

9.3

Food

8.8

Comfort

9.0

Entertainment

8.9

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful
207 reviews
STARLUX Airlines
9.0
Wonderful
207 reviews

Crew

9.3

Food

8.8

Comfort

9.0

Entertainment

8.9

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,232 reviews
STARLUX Airlines
9.0
Wonderful
207 reviews

Crew

9.3

Food

8.8

Comfort

9.0

Entertainment

8.9

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,131 reviews
STARLUX Airlines
9.0
Wonderful
207 reviews

Crew

9.3

Food

8.8

Comfort

9.0

Entertainment

8.9

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Asiana Airlines
8.2
Very good
475 reviews
STARLUX Airlines
9.0
Wonderful
207 reviews

Crew

9.3

Food

8.8

Comfort

9.0

Entertainment

8.9

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Philippine Airlines
7.2
Good
899 reviews
STARLUX Airlines
9.0
Wonderful
207 reviews

Crew

9.3

Food

8.8

Comfort

9.0

Entertainment

8.9

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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), located 11.4 mi from the city center, is the airport you fly into when you book flights from Thailand to Seattle.

  • How long is the flight from Thailand to Seattle?

    Philippine Airlines and STARLUX Airlines can get you from Thailand to Seattle in just under 19h 45m. Your travel time can differ by up to 17h 25m. Airlines will cover a distance of 7443 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Thailand to Seattle?

    Most travelers choose Bangkok Suvarnabhumi - Seattle/Tacoma Intl, Bangkok Don Mueang Intl - Seattle/Tacoma Intl or Chiang Mai - Seattle/Tacoma Intl when deciding on the best route from Thailand to Seattle.

  • 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 vacation 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, January is the cheapest month in which you can book a flight from Thailand to Seattle (average of $238). Flying from Thailand to Seattle in June is currently the most expensive (average of $388). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Lacey
Ocean Shores
Lynnwood
Leavenworth
Renton
Olympia
Kent
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Thailand to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Thailand to Seattle

Discover the top 9 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 2,558,603 searches. Data last updated August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$551Average$641FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$622Average$778FlexibilityNo cancel feeOn-time76%
STARLUX AirlinesCheapest$703Average$843FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$781Average$860FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$788Average$969FlexibilityNo cancel feeOn-time74%
Korean AirCheapest$801Average$900FlexibilityNo cancel feeOn-time81%
DeltaCheapest$829Average$979FlexibilityNo cancel feeOn-timeN/A
ANACheapest$867Average$1,067FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$922Average$1,041FlexibilityNo cancel feeOn-time79%

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