Suvarnabhumi

$352+ Cheap flights from Seattle (SEA) to Suvarnabhumi (BKK)

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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
Jan 27 — Feb 31
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Cheap flight deals from Seattle to Suvarnabhumi

Cheapest flights from Seattle to Suvarnabhumi
Explore the most affordable flight options available from Seattle to Suvarnabhumi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

This Trip.com deal was found by Cheapflights users on 12/26. 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 12/309:30 pmSEA - BKK
1 stop34h 30mMultiple Airlines
Sat 1/315:50 pmBKK - SEA
1 stop15h 20mMultiple Airlines
Deal found 12/26$815
This oojo deal was found by Cheapflights users on 12/28. 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 12/2812:10 amSEA - BKK
1 stop21h 55mChina Airlines
Mon 3/22:35 amBKK - SEA
1 stop30h 35mChina Airlines
Deal found 12/28$964
This oojo deal was found by Cheapflights users on 12/26. 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 12/2812:10 amSEA - BKK
1 stop20h 20mEVA Air
Tue 3/35:15 pmBKK - SEA
1 stop15h 55mEVA Air
Deal found 12/26$966
This United Airlines deal was found by Cheapflights users on 12/28. 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.
Mon 12/297:12 pmSEA - BKK
2 stops25h 13mUnited Airlines
Tue 3/34:55 pmBKK - SEA
2 stops21h 35mUnited Airlines
Deal found 12/28$996
This FlightHub deal was found by Cheapflights users on 12/28. 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 12/2712:10 amSEA - BKK
1 stop18h 40mChina Airlines
Sat 2/2810:55 amBKK - SEA
1 stop22h 15mChina Airlines
Deal found 12/28$1,006
This United Airlines deal was found by Cheapflights users on 12/26. 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.
Tue 12/305:05 pmSEA - BKK
2 stops27h 20mUnited Airlines
Sat 1/314:55 pmBKK - SEA
2 stops21h 52mUnited Airlines
Deal found 12/26$1,038
This FlightHub deal was found by Cheapflights users on 12/26. 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 12/2712:10 amSEA - BKK
1 stop32h 30mEVA Air
Thu 1/152:15 amBKK - SEA
1 stop30h 55mEVA Air
Deal found 12/26$1,044
This United Airlines deal was found by Cheapflights users on 12/27. 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.
Sat 12/277:12 pmSEA - BKK
2 stops49h 13mUnited Airlines
Mon 1/194:55 pmBKK - SEA
2 stops33h 46mUnited Airlines
Deal found 12/27$1,074
This oojo deal was found by Cheapflights users on 12/26. 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 12/297:09 amSEA - BKK
2 stops26h 06mCathay Pacific
Tue 3/37:55 amBKK - SEA
2 stops25h 58mCathay Pacific
Deal found 12/26$1,090

Find flight deals from Seattle to Suvarnabhumi

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Suvarnabhumi (BKK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 28, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$643
(Justfly.com)

One-way from

$352
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$1,238
Provider with most accurate pricing for Seattle/Tacoma Intl-Bangkok Suvarnabhumi flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Bangkok Suvarnabhumi flights.
From Seattle/Tacoma Intl to Bangkok Suvarnabhumi
One-way flight from Seattle/Tacoma Intl to Bangkok Suvarnabhumi
Highest demand for flights based on searches. 6% potential increase in price ($60 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Suvarnabhumi 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 December 28, 2025.
Use the filters below to find and compare flights from Seattle to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Seattle

Fly to

Suvarnabhumi

Route

Depart

Return

Price

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Fri 4/17

7:15 am-11:40 pm

2 stops26h 25m

Bangkok Suvarnabhumi

Mon 5/18

9:50 am-10:40 am

1 stop38h 50m

$650

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Fri 4/17

7:15 am-11:40 pm

2 stops26h 25m

Bangkok Suvarnabhumi

Wed 5/13

9:40 pm-10:40 am

1 stop27h 00m

$650

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Tue 5/5

12:50 pm-11:40 pm

1 stop20h 50m

Bangkok Suvarnabhumi

Mon 5/25

9:40 pm-10:40 am

1 stop27h 00m

$653

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Fri 4/24

12:50 pm-11:40 pm

1 stop20h 50m

Bangkok Suvarnabhumi

Mon 5/11

11:30 pm-10:40 am

1 stop25h 10m

$653

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Tue 4/7

12:50 pm-11:40 pm

1 stop20h 50m

Bangkok Suvarnabhumi

Sun 4/19

11:30 pm-10:40 am

1 stop25h 10m

$653

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Tue 4/7

12:50 pm-1:15 pm

1 stop34h 25m

Bangkok Suvarnabhumi

Tue 4/21

11:30 pm-10:40 am

1 stop25h 10m

$653

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Thu 4/30

7:15 am-11:40 pm

2 stops26h 25m

Bangkok Suvarnabhumi

Sun 6/28

9:50 am-10:50 am

1 stop39h 00m

$658

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 4/13

7:15 am-11:40 pm

2 stops26h 25m

Bangkok Suvarnabhumi

Mon 5/18

11:30 pm-10:40 am

1 stop25h 10m

$658

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sat 1/10

10:00 am-2:20 pm

1 stop37h 20m

$359

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 2/16

11:25 am-12:45 am

1 stop22h 20m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Showing 1-10 of 17 results
1
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Compare providers for flights from Seattle to Suvarnabhumi

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Suvarnabhumi in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
GurufarePrice Accuracy2 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Bangkok Suvarnabhumi Airport flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Seattle-Bangkok Suvarnabhumi Airport flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Seattle-Bangkok Suvarnabhumi Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Bangkok Suvarnabhumi Airport flights, Cheapflights users trust Justfly.com the most. Justfly.com has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Bangkok Suvarnabhumi Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Suvarnabhumi

Have a flexible travel schedule? Discover the best time to fly to Suvarnabhumi 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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Bangkok Suvarnabhumi Airport

How far ahead should I book a flight from Seattle to Bangkok Suvarnabhumi Airport?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Suvarnabhumi. Price data was last updated on December 26, 2025.

The best time to book flights from Seattle to Bangkok Suvarnabhumi Airport is 74 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Bangkok Suvarnabhumi Airport?

Currently, February is the cheapest month in which you can book a flight from Seattle to Bangkok Suvarnabhumi Airport (average of $524). Flying from Seattle to Bangkok Suvarnabhumi Airport in June is currently the most expensive (average of $944). 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 BKK?

Find hourly flight availability from Seattle to Suvarnabhumi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 28, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Bangkok Suvarnabhumi Airport in the morning. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Seattle to Bangkok Suvarnabhumi Airport?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Suvarnabhumi. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Bangkok Suvarnabhumi Airport flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Seattle to Bangkok Suvarnabhumi Airport?

Reviews of airlines servicing Suvarnabhumi

Get insights into the airlines that provide service to Suvarnabhumi. 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 Suvarnabhumi. Reviews last updated December 28, 2025.
See what other customers who have flown with STARLUX Airlines, EVA Air, and ANA from Seattle to Bangkok Suvarnabhumi Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

9.1

Food

8.6

Comfort

8.8

Overall

8.9

Boarding

8.9

Entertainment

8.8

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Crew

9.1

Food

8.6

Comfort

8.8

Overall

8.9

Boarding

8.9

Entertainment

8.8

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Crew

9.1

Food

8.6

Comfort

8.8

Overall

8.9

Boarding

8.9

Entertainment

8.8

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
8.4
Very good

Crew

9.1

Food

8.6

Comfort

8.8

Overall

8.9

Boarding

8.9

Entertainment

8.8

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Crew

9.1

Food

8.6

Comfort

8.8

Overall

8.9

Boarding

8.9

Entertainment

8.8

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Crew

9.1

Food

8.6

Comfort

8.8

Overall

8.9

Boarding

8.9

Entertainment

8.8

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Related info for your journey

Find useful and relevant information for your journey from Seattle to Suvarnabhumi. 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 Bangkok Suvarnabhumi?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Bangkok Suvarnabhumi. You should not have trouble finding flights to Bangkok Suvarnabhumi from Seattle/Tacoma Intl; the airport handles an average of 0 outbound flights to Bangkok Suvarnabhumi per day. You should also have plenty of airline options to choose from since 16 airlines have flights from the Seattle airport to Bangkok Suvarnabhumi. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

  • How long is the flight from Seattle to Bangkok Suvarnabhumi Airport?

    Airlines like Korean Air fly from Seattle to Bangkok Suvarnabhumi Airport in about 20h 50m. The time it takes to get you to your destination can typically vary by up to . Seattle and Bangkok Suvarnabhumi Airport are separated by a distance of 7443 mi.

  • What are the cheapest airlines flying from Seattle to Bangkok Suvarnabhumi Airport round-trip?

    According to our current data, Philippine Airlines ($172), Delta ($433), and Singapore Airlines ($517) offers the cheapest pricing from Seattle to Bangkok Suvarnabhumi Airport. These flights start at 80% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Bangkok Suvarnabhumi Airport one-way?

    The cheapest airlines for a one-way flight from Seattle to Bangkok Suvarnabhumi Airport are Singapore Airlines ($280), Philippine Airlines ($298), and Asiana Airlines ($348).

  • Where are the most common layover locations when flying from Seattle to Bangkok Suvarnabhumi Airport?

  • What are some popular things to do or see while on a layover in Taipei City?

    Taipei 101, Shilin Night Market, and Raohe Street Night Market are currently the most popular points of interest in Taipei City at the moment. Those on a layover in Taipei City interested in visiting Taipei 101, Shilin Night Market, or Raohe Street Night Market can do so by traveling 21.0 mi, 18.3 mi, and 21.6 mi, respectively from Taipei City Taiwan Taoyuan Intl. Those looking to explore during their layover in Taipei City can rent a car from Taipei City Taiwan Taoyuan Intl for about $73 per day.

  • What are some popular points of interest to see during a layover in Seoul?

    Seoul travelers tend to visit Dongdaemun Market, Lotte World, and Bukchon Hanok Village more than any other notable places. Dongdaemun Market, Lotte World and Bukchon Hanok Village are located about 31.6 mi, 35.7 mi, and 30.6 mi, respectively from Incheon Intl if you are interested in checking them out. Those looking to explore during their layover in Seoul can rent a car from Incheon Intl for about $54 per day.

  • What are points of interest worth seeing during a layover in Singapore?

    Sentosa, Universal Studios Singapore, and Geylang Serai New Market are currently the most popular points of interest in Singapore. Those on a layover in Singapore interested in visiting Sentosa, Universal Studios Singapore, or Geylang Serai New Market can do so by traveling 13.4 mi, 13.4 mi, and 6.9 mi, respectively from Singapore Changi. Those on a layover in Singapore in need of a rental car can book one at Singapore Changi for about $85.

  • Where are the least popular layover locations for Seattle to Bangkok Suvarnabhumi Airport flights?

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Suvarnabhumi 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 Bangkok Suvarnabhumi Airport?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Bangkok Suvarnabhumi Airport (average of $524). Flying from Seattle to Bangkok Suvarnabhumi Airport in June is currently the most expensive (average of $944). 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 Bangkok Suvarnabhumi Airport?

Book flights to Bangkok Suvarnabhumi Airport if you plan to visit one of these locations
Sattahip
Kanchanaburi
Chonburi
Cha-am
Ko Samet
Pak Chong
Ko Lan

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Top 10 airlines flying from Seattle to Suvarnabhumi

Discover the top 10 airlines that operate flights from Seattle to Suvarnabhumi. 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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$173Average$701FlexibilityNo cancel feeOn-time60%
DeltaCheapest$433Average$867FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$519Average$706FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$612Average$688FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$685Average$753FlexibilityNo cancel feeOn-time81%
ANACheapest$686Average$883FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$700Average$916FlexibilityNo cancel feeOn-time69%
China AirlinesCheapest$733Average$832FlexibilityNo cancel feeOn-time70%
Cathay PacificCheapest$735Average$880FlexibilityNo cancel feeOn-time72%
STARLUX AirlinesCheapest$740Average$858FlexibilityNo cancel feeOn-timeN/A

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