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$429+ 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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap 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 January 21, 2026.

This Gotogate deal was found by Cheapflights users on 1/19. 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 3/69:40 am
BKK
-
SEA
1 stop19h 15m
Multiple Airlines
Wed 3/1812:10 am
SEA
-
BKK
1 stop34h 45m
Multiple Airlines
Deal found 1/19$630
This oojo deal was found by Cheapflights users on 1/19. 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 1/206:45 pm
BKK
-
SEA
1 stop38h 55m
Philippine Airlines
Tue 1/279:30 pm
SEA
-
BKK
1 stop29h 20m
Philippine Airlines
Deal found 1/19$633
This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/122:05 am
BKK
-
SEA
1 stop26h 50m
Multiple Airlines
Sat 3/2812:10 am
SEA
-
BKK
1 stop33h 30m
Multiple Airlines
Deal found 1/20$635
This oojo deal was found by Cheapflights users on 1/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:30 pm
BKK
-
SEA
1 stop38h 35m
Philippine Airlines
Tue 9/111:10 pm
SEA
-
BKK
1 stop23h 00m
Philippine Airlines
Deal found 1/20$641
This oojo deal was found by Cheapflights users on 1/21. 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.
Mon 3/161:05 am
BKK
-
SEA
1 stop21h 55m
Hainan Airlines
Tue 4/711:00 am
SEA
-
BKK
1 stop35h 20m
Hainan Airlines
Deal found 1/21$642
This oojo deal was found by Cheapflights users on 1/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2111:50 pm
BKK
-
SEA
1 stop33h 50m
Philippine Airlines
Fri 4/1711:10 pm
SEA
-
BKK
1 stop23h 00m
Philippine Airlines
Deal found 1/20$643
This Trip.com deal was found by Cheapflights users on 1/19. 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.
Tue 2/101:20 pm
BKK
-
SEA
1 stop20h 20m
Philippine Airlines
Tue 2/179:30 pm
SEA
-
BKK
1 stop34h 30m
Philippine Airlines
Deal found 1/19$647
This Gotogate deal was found by Cheapflights users on 1/21. 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.
Sun 3/82:05 am
BKK
-
SEA
1 stop26h 50m
Multiple Airlines
Sun 3/2212:10 am
SEA
-
BKK
1 stop34h 45m
Multiple Airlines
Deal found 1/21$649
This FlightHub deal was found by Cheapflights users on 1/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/51:20 am
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Thu 4/2312:55 am
SEA
-
BKK
1 stop20h 20m
Asiana Airlines
Deal found 1/20$654
This FlightHub deal was found by Cheapflights users on 1/21. 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.
Wed 3/1812:20 pm
BKK
-
SEA
1 stop16h 35m
Asiana Airlines
Thu 4/912:55 am
SEA
-
BKK
1 stop32h 15m
Asiana Airlines
Deal found 1/21$655
This iWofly deal was found by Cheapflights users on 1/19. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/11:25 pm
BKK
-
SEA
1 stop20h 40m
Philippine Airlines
Wed 8/1211:10 pm
SEA
-
BKK
1 stop33h 30m
Philippine Airlines
Deal found 1/19$656
This Gotogate deal was found by Cheapflights users on 1/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:35 am
BKK
-
SEA
1 stop26h 20m
Multiple Airlines
Sun 9/612:55 am
SEA
-
BKK
1 stop22h 20m
Multiple Airlines
Deal found 1/18$660

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 January 21, 2026.

Round-trip from

$630
(Gotogate)

One-way from

$429
(FlightHub)

Popular in

July

Cheapest in

December

Average price

$912
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. 10% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 21, 2026.
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

Mon 4/27

12:20 pm-2:55 pm

1 stop16h 35m

Seattle/Tacoma Intl

Sun 5/10

12:55 am-11:15 am

1 stop20h 20m

$654

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 2/6

11:55 pm-1:55 pm

1 stop29h 00m

Seattle/Tacoma Intl

Sat 3/28

12:10 am-11:15 am

1 stop21h 05m

$694

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 2/5

11:55 pm-1:55 pm

1 stop29h 00m

Seattle/Tacoma Intl

Mon 3/30

12:55 am-11:10 pm

1 stop32h 15m

$694

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 2/4

12:20 pm-1:55 pm

1 stop16h 35m

Seattle/Tacoma Intl

Mon 3/30

12:55 am-11:10 pm

1 stop32h 15m

$694

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 3/14

12:20 pm-2:55 pm

1 stop16h 35m

Seattle/Tacoma Intl

Wed 3/18

12:10 am-11:15 am

1 stop21h 05m

$719

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 2/1

11:55 pm-1:55 pm

1 stop29h 00m

Seattle/Tacoma Intl

Fri 3/27

12:10 am-11:10 pm

1 stop33h 00m

$732

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 6/5

9:35 am-2:25 pm

1 stop18h 50m

Seattle/Tacoma Intl

Sat 9/5

5:00 pm-9:35 am

2 stops26h 35m

$792

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 6/1

9:35 am-2:25 pm

1 stop18h 50m

Seattle/Tacoma Intl

Tue 9/1

5:00 pm-9:35 am

2 stops26h 35m

$793

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 6/1

9:35 am-2:25 pm

1 stop18h 50m

Seattle/Tacoma Intl

Wed 9/16

8:35 am-11:55 pm

2 stops25h 20m

$796

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 3/9

2:35 am-7:10 pm

1 stop30h 35m

Seattle/Tacoma Intl

Tue 3/17

1:10 am-9:50 am

1 stop18h 40m

$799

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 54 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, April is the cheapest month in which you can book a flight from Thailand to Seattle (average of $622). Flying from Thailand to Seattle in July is currently the most expensive (average of $761). 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 January 21, 2026.

It’s optimal to fly from Thailand to Seattle at noon. By choosing this option you can save up to 10% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Thailand to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Thailand to Seattle. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Thailand to Seattle flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 January 21, 2026.
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
8.9
Very good
268 reviews

Food

8.6

Crew

9.1

Overall

8.9

Comfort

8.8

Boarding

8.9

Entertainment

8.8

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
268 reviews
STARLUX Airlines
8.9
Very good
268 reviews

Food

8.6

Crew

9.1

Overall

8.9

Comfort

8.8

Boarding

8.9

Entertainment

8.8

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
8.4
Very good
1,327 reviews
STARLUX Airlines
8.9
Very good
268 reviews

Food

8.6

Crew

9.1

Overall

8.9

Comfort

8.8

Boarding

8.9

Entertainment

8.8

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.
Korean Air
8.4
Very good
1,187 reviews
STARLUX Airlines
8.9
Very good
268 reviews

Food

8.6

Crew

9.1

Overall

8.9

Comfort

8.8

Boarding

8.9

Entertainment

8.8

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.
Delta
7.9
Good
8,088 reviews
STARLUX Airlines
8.9
Very good
268 reviews

Food

8.6

Crew

9.1

Overall

8.9

Comfort

8.8

Boarding

8.9

Entertainment

8.8

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.
Philippine Airlines
7.3
Good
955 reviews
STARLUX Airlines
8.9
Very good
268 reviews

Food

8.6

Crew

9.1

Overall

8.9

Comfort

8.8

Boarding

8.9

Entertainment

8.8

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), 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?

    Asiana Airlines, Korean Air, and EVA Air can get you from Thailand to Seattle in just under 16h 35m. Your travel time can differ by up to 7h 10m. Airlines will cover a distance of 7443 mi. This flight may include one or multiple stops.

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

    $378 is the cheapest one-way deal found within the past few days, from Hainan Airlines. You may also be able to find cheap deals on Philippine Airlines and STARLUX Airlines, with prices starting from $381 and $440, respectively.

  • 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, April is the cheapest month in which you can book a flight from Thailand to Seattle (average of $622). Flying from Thailand to Seattle in July is currently the most expensive (average of $761). 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
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Renton
Puyallup
Kirkland
Kent
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

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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 8 airlines flying from Thailand to Seattle

Discover the top 8 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$624Average$658FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$651Average$970FlexibilityNo cancel feeOn-time76%
STARLUX AirlinesCheapest$705Average$824FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$766Average$868FlexibilityNo cancel feeOn-time74%
ANACheapest$768Average$1,067FlexibilityNo cancel feeOn-time80%
China AirlinesCheapest$781Average$838FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$803Average$900FlexibilityNo cancel feeOn-time81%
DeltaCheapest$829Average$922FlexibilityNo cancel feeOn-timeN/A

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