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$447+ 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$727
(Vakatrip)

One-way from

$447
(FlightHub)

Popular in

August

Cheapest in

November

Average price

$965
From Thailand to Seattle/Tacoma Intl
Search Deals
One-way flight from Thailand to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($118 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Vakatrip deal was found by Cheapflights users on 6/11. 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 Vakatrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2911:30 pmBKK - SEA
1 stop27h 00mMultiple Airlines
Fri 10/172:15 pmSEA - BKK
1 stop19h 10mMultiple Airlines
Deal found 6/11$727
This Agoda.com deal was found by Cheapflights users on 6/11. 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 Agoda.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/266:40 pmBKK - SEA
1 stop38h 35mPhilippine Airlines
Wed 10/811:35 pmSEA - BKK
1 stop22h 40mPhilippine Airlines
Deal found 6/11$734
This Gotogate deal was found by Cheapflights users on 6/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/25:50 pmBKK - SEA
1 stop36h 20mSTARLUX Airlines
Wed 9/171:15 amSEA - BKK
1 stop25h 25mSTARLUX Airlines
Deal found 6/12$769
This China Airlines deal was found by Cheapflights users on 6/10. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/152:40 amBKK - SEA
1 stop30h 40mChina Airlines
Tue 10/71:10 amSEA - BKK
1 stop25h 10mChina Airlines
Deal found 6/10$775
This Trip.com deal was found by Cheapflights users on 6/11. 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.
Sat 12/2011:25 amCNX - SEA
1 stop21h 50mChina Airlines
Thu 1/112:10 amSEA - CNX
1 stop19h 15mChina Airlines
Deal found 6/11$804
This oojo deal was found by Cheapflights users on 6/12. 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 12/1812:15 amCNX - SEA
1 stop23h 45mKorean Air
Tue 1/2011:00 amSEA - CNX
1 stop21h 05mKorean Air
Deal found 6/12$814
This Gotogate deal was found by Cheapflights users on 6/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/912:05 amCNX - SEA
1 stop26h 40mAsiana Airlines
Fri 7/112:30 pmSEA - CNX
1 stop19h 10mAsiana Airlines
Deal found 6/10$820
This oojo deal was found by Cheapflights users on 6/12. 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.
Fri 12/1911:50 amCNX - SEA
1 stop21h 20mEVA Air
Mon 1/1912:10 amSEA - CNX
1 stop19h 25mEVA Air
Deal found 6/12$840
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/152:35 amBKK - SEA
1 stop24h 55mDelta
Sat 11/811:15 amSEA - BKK
1 stop21h 05mDelta
Deal found 6/10$840
This CheersTravel deal was found by Cheapflights users on 6/11. 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 CheersTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/241:00 amBKK - SEA
1 stop23h 00mKorean Air
Tue 12/3011:00 amSEA - BKK
1 stop19h 30mKorean Air
Deal found 6/11$842
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/214:45 pmBKK - SEA
1 stop16h 45mEVA Air
Tue 7/12:10 amSEA - BKK
1 stop19h 00mEVA Air
Deal found 6/11$843
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1912:15 amCNX - SEA
1 stop28h 40mMultiple Airlines
Fri 1/212:10 amSEA - CNX
1 stop31h 55mMultiple Airlines
Deal found 6/11$894

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 June 12, 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

Sun 6/29

11:30 pm-12:30 pm

1 stop27h 00m

Seattle/Tacoma Intl

Fri 10/17

2:15 pm-11:25 pm

1 stop19h 10m

$727

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 6/26

6:40 pm-7:15 pm

1 stop38h 35m

Seattle/Tacoma Intl

Wed 10/8

11:35 pm-12:15 pm

1 stop22h 40m

$734

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 9/2

5:50 pm-4:10 pm

1 stop36h 20m

Seattle/Tacoma Intl

Wed 9/17

1:15 am-4:40 pm

1 stop25h 25m

$769

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 9/15

2:40 am-7:20 pm

1 stop30h 40m

Seattle/Tacoma Intl

Tue 10/7

1:10 am-4:20 pm

1 stop25h 10m

$775

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 7/9

12:05 am-12:45 pm

1 stop26h 40m

Seattle/Tacoma Intl

Fri 7/11

2:30 pm-11:40 pm

1 stop19h 10m

$820

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 10/15

2:35 am-1:30 pm

1 stop24h 55m

Seattle/Tacoma Intl

Sat 11/8

11:15 am-11:20 pm

1 stop21h 05m

$840

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 6/22

4:45 pm-7:30 pm

1 stop16h 45m

Seattle/Tacoma Intl

Tue 7/1

2:10 am-1:05 pm

1 stop20h 55m

$843

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 7/11

9:35 am-2:25 pm

1 stop18h 50m

Seattle/Tacoma Intl

Thu 7/31

7:00 am-11:55 pm

2 stops26h 55m

$895

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 6/22

7:00 am-12:59 am

2 stops31h 59m

Seattle/Tacoma Intl

Sun 10/5

4:30 pm-4:35 am

1 stop22h 05m

$896

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 7/6

1:20 am-12:45 pm

1 stop25h 25m

Seattle/Tacoma Intl

Mon 7/28

2:30 pm-11:10 pm

1 stop18h 40m

$898

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 38 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 July is currently the most expensive (average of $391). 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 June 12, 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.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Thailand to Seattle, such as STARLUX Airlines, EVA Air and Korean Air. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
177 reviews

Boarding

9.0

Comfort

9.0

Food

8.8

Overall

9.1

Entertainment

8.9

Crew

9.3

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
9.1
Wonderful
177 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Boarding

9.0

Comfort

9.0

Food

8.8

Overall

9.1

Entertainment

8.9

Crew

9.3

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
1,202 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Boarding

9.0

Comfort

9.0

Food

8.8

Overall

9.1

Entertainment

8.9

Crew

9.3

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
1,088 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Boarding

9.0

Comfort

9.0

Food

8.8

Overall

9.1

Entertainment

8.9

Crew

9.3

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.
Japan Airlines
8.3
Very good
1,489 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Boarding

9.0

Comfort

9.0

Food

8.8

Overall

9.1

Entertainment

8.9

Crew

9.3

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.
China Airlines
8.3
Very good
738 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Boarding

9.0

Comfort

9.0

Food

8.8

Overall

9.1

Entertainment

8.9

Crew

9.3

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.

  • What are the cheapest airlines to fly from Thailand to Seattle one-way?

    $447 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 China Airlines and STARLUX Airlines, with prices starting from $472 and $489, respectively.

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

    Most travelers choose Bangkok Suvarnabhumi - Seattle/Tacoma Intl, Chiang Mai - Seattle/Tacoma Intl or Bangkok Don Mueang Intl - 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 July is currently the most expensive (average of $391). 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 Thailand?

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

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 10 airlines flying from Thailand to Seattle

Discover the top 10 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$551Average$640FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$622Average$790FlexibilityNo cancel feeOn-time76%
EVA AirCheapest$788Average$996FlexibilityNo cancel feeOn-time74%
China AirlinesCheapest$793Average$868FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$793Average$898FlexibilityNo cancel feeOn-time81%
STARLUX AirlinesCheapest$796Average$907FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$829Average$986FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$850Average$960FlexibilityNo cancel feeOn-time69%
ANACheapest$899Average$1,069FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$922Average$1,041FlexibilityNo cancel feeOn-time79%

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