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$334+ Cheap flights from Seattle (SEA) to Thailand

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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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Cheap flight deals from Seattle to Thailand

Keep the following information in mind while searching for Seattle to Thailand flight deals. Data was last updated February 22, 2025.

Round-trip from

$700
(FlightHub)

One-way from

$334
(FlightHub)

Popular in

June

Cheapest in

February

Average price

$845
From Seattle/Tacoma Intl to Thailand
Search Deals
One-way flight from Seattle/Tacoma Intl to Thailand
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($220 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Seattle to Thailand

Cheapest flights from Seattle to Thailand
Explore the most affordable flight options available from Seattle to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This Gurufare deal was found by Cheapflights users on 2/22. 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.
Thu 9/1810:15 amSEA - BKK
1 stop19h 45mSingapore Airlines
Thu 10/1612:15 pmBKK - SEA
1 stop34h 30mSingapore Airlines
Deal found 2/22$679
This oojo deal was found by Cheapflights users on 2/21. 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.
Sun 3/210:35 pmSEA - BKK
1 stop28h 10mPhilippine Airlines
Tue 4/110:55 pmBKK - SEA
1 stop34h 25mPhilippine Airlines
Deal found 2/21$710
This CrystalTravel deal was found by Cheapflights users on 2/21. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1012:00 pmSEA - BKK
1 stop22h 45mKorean Air
Mon 3/249:30 pmBKK - SEA
1 stop26h 30mKorean Air
Deal found 2/21$714
This CrystalTravel deal was found by Cheapflights users on 2/21. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/312:45 pmSEA - BKK
1 stop20h 35mAsiana Airlines
Sun 3/161:50 amBKK - SEA
1 stop24h 05mAsiana Airlines
Deal found 2/21$715
This Gotogate deal was found by Cheapflights users on 2/21. 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 4/61:10 amSEA - BKK
1 stop25h 10mChina Airlines
Mon 4/1410:50 amBKK - SEA
1 stop22h 40mChina Airlines
Deal found 2/21$743
This Traveloka deal was found by Cheapflights users on 2/22. 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 Traveloka is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2010:15 amSEA - BKK
1 stop19h 45mMultiple Airlines
Sat 4/2610:55 pmBKK - SEA
1 stop34h 25mMultiple Airlines
Deal found 2/22$773
This eDestinos deal was found by Cheapflights users on 2/22. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1412:50 pmSEA - HKT
1 stop19h 20mKorean Air
Wed 4/2311:25 pmHKT - SEA
1 stop25h 15mKorean Air
Deal found 2/22$775
This Delta deal was found by Cheapflights users on 2/22. 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.
Thu 3/2711:35 amSEA - BKK
1 stop23h 10mDelta
Mon 6/99:40 pmBKK - SEA
1 stop30h 00mDelta
Deal found 2/22$777
This FlightHub deal was found by Cheapflights users on 2/21. 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.
Thu 9/1110:15 amSEA - HKT
1 stop32h 50mSingapore Airlines
Sat 9/208:00 pmHKT - SEA
1 stop26h 45mSingapore Airlines
Deal found 2/21$783
This United Airlines deal was found by Cheapflights users on 2/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/267:00 amSEA - BKK
2 stops27h 05mUnited Airlines
Mon 6/99:35 amBKK - SEA
1 stop18h 50mUnited Airlines
Deal found 2/22$790
This oojo deal was found by Cheapflights users on 2/21. 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.
Sun 3/231:10 amSEA - CNX
1 stop19h 15mChina Airlines
Tue 4/111:20 amCNX - SEA
1 stop22h 10mChina Airlines
Deal found 2/21$800
This oojo deal was found by Cheapflights users on 2/21. 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.
Wed 3/512:45 pmSEA - CNX
1 stop19h 20mAsiana Airlines
Tue 3/1112:25 amCNX - SEA
1 stop25h 30mAsiana Airlines
Deal found 2/21$817

Find flights from Seattle to Thailand within your budget

Customize your flight search to find flights from Seattle to Thailand 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 February 22, 2025.

Fly from

Seattle

Fly to

Thailand

Route

Depart

Return

Price

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sun 3/30

10:15 am-8:00 pm

1 stop19h 45m

Bangkok Suvarnabhumi

Tue 5/6

9:15 pm-4:40 pm

2 stops33h 25m

$700

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sun 3/16

11:35 pm-12:20 pm

1 stop22h 45m

Bangkok Suvarnabhumi

Wed 3/19

1:40 pm-7:10 pm

1 stop19h 30m

$710

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 3/10

12:00 pm-12:45 am

1 stop22h 45m

Bangkok Suvarnabhumi

Mon 3/24

9:30 pm-10:00 am

1 stop26h 30m

$714

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sun 3/9

1:45 pm-12:20 am

1 stop20h 35m

Bangkok Suvarnabhumi

Mon 6/9

1:10 am-12:30 pm

1 stop25h 20m

$725

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sun 4/6

1:10 am-4:20 pm

1 stop25h 10m

Bangkok Suvarnabhumi

Mon 4/14

10:50 am-7:30 pm

1 stop22h 40m

$743

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sun 4/20

10:15 am-8:00 pm

1 stop19h 45m

Bangkok Suvarnabhumi

Sat 4/26

10:55 pm-7:20 pm

1 stop34h 25m

$773

SeattlePhuket City

SEA - HKT

SEAHKT

Seattle/Tacoma Intl

Mon 4/14

12:50 pm-10:10 pm

1 stop19h 20m

Phuket City

Wed 4/23

11:25 pm-10:40 am

1 stop25h 15m

$775

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Thu 3/27

11:35 am-12:45 am

1 stop23h 10m

Bangkok Suvarnabhumi

Mon 6/9

9:40 pm-1:40 pm

1 stop30h 00m

$777

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Wed 3/26

7:00 am-12:05 am

2 stops27h 05m

Bangkok Suvarnabhumi

Mon 6/9

9:35 am-2:25 pm

1 stop18h 50m

$790

SeattlePhuket City

SEA - HKT

SEAHKT

Seattle/Tacoma Intl

Tue 4/1

10:15 am-7:20 pm

1 stop19h 05m

Phuket City

Mon 4/7

8:10 pm-8:45 am

1 stop26h 35m

$797

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 60 results
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Best time to book a flight from Seattle to Thailand

Have a flexible travel schedule? Discover the best time to fly to Thailand from Seattle 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.

Travel insights for flights from Seattle to Thailand

Get recent, data-driven insights about flights from Seattle to Thailand including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Seattle to Thailand?

Currently, February is the cheapest month in which you can book a flight from Seattle to Thailand (average of $976). Flying from Seattle to Thailand in June is currently the most expensive (average of $1,580). 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 SEA to TH?

Find hourly flight availability from Seattle to Thailand. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Thailand as you normally would.

Rainfall in Thailand by month

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

In terms of precipitation, rainfall in Thailand ranges from 0.4 - 12.6 inches per month. September is typically the wettest month, when rainfall can reach 12.6 in. January is typically the driest time to visit Thailand when rainfall is around 0.4 in.

Temperature in Thailand by month

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

If weather is an important factor for your trip to Thailand, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Thailand

Get insights into the airlines that provide service to Thailand. 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 Thailand. Reviews last updated February 22, 2025.
Read reviews from past customers who have flown STARLUX Airlines, EVA Air and Korean Air from Seattle to Thailand. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Overall

9.1

Comfort

9.0

Crew

9.3

Boarding

9.1

Food

9.0

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

STARLUX Airlines
9.1
Wonderful
140 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Overall

9.1

Comfort

9.0

Crew

9.3

Boarding

9.1

Food

9.0

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

EVA Air
8.4
Very good
1,199 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Overall

9.1

Comfort

9.0

Crew

9.3

Boarding

9.1

Food

9.0

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Korean Air
8.4
Very good
1,036 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Overall

9.1

Comfort

9.0

Crew

9.3

Boarding

9.1

Food

9.0

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

ANA
8.4
Very good
836 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Overall

9.1

Comfort

9.0

Crew

9.3

Boarding

9.1

Food

9.0

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Japan Airlines
8.3
Very good
1,440 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Overall

9.1

Comfort

9.0

Crew

9.3

Boarding

9.1

Food

9.0

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Thailand. 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 from for flights from Seattle to Thailand?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to Thailand from Seattle.

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

    $334 is the cheapest one-way deal found within the past few days, from Singapore Airlines. You may also be able to find cheap deals on Qatar Airways and China Airlines, with prices starting from $411 and $412, respectively.

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

    While some choose either Seattle/Tacoma Intl - Bangkok Don Mueang Intl or Seattle/Tacoma Intl - Chiang Mai, Seattle/Tacoma Intl - Bangkok Suvarnabhumi is the most popular route from Seattle to Thailand.

  • Can I find deals for flights from Seattle to Thailand that include hotel bookings?

    Yes. In addition to deals on Seattle to Thailand flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Thailand?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Thailand.

  • Can I find deals for business class flights from Seattle to Thailand?

    Yes. Cheapflights offers flight deals from Seattle to Thailand 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 Seattle to Thailand?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Thailand (average of $976). Flying from Seattle to Thailand in June is currently the most expensive (average of $1,580). 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

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Alternative routes for Seattle to Thailand

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Seattle to Thailand

Discover the top 10 airlines that operate flights from Seattle to Thailand. 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$630Average$904FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$636Average$824FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$707Average$1,137FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$710Average$768FlexibilityNo cancel feeOn-time60%
China AirlinesCheapest$749Average$843FlexibilityNo cancel feeOn-time70%
China EasternCheapest$755Average$872FlexibilityNo cancel feeOn-time62%
DeltaCheapest$760Average$1,258FlexibilityNo cancel feeOn-timeN/A
ANACheapest$761Average$948FlexibilityNo cancel feeOn-time80%
Turkish AirlinesCheapest$773Average$1,071FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$786Average$973FlexibilityNo cancel feeOn-time69%
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