Suvarnabhumi

$343+ 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
Apr 9 — Apr 161
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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 March 10, 2026.

This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1112:55 am
SEA
-
BKK
1 stop32h 25m
Asiana Airlines
Wed 10/2811:55 pm
BKK
-
SEA
1 stop29h 00m
Asiana Airlines
Deal found 3/9$634
This Mytrip deal was found by Cheapflights users on 3/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/112:10 am
SEA
-
BKK
1 stop30h 50m
Asiana Airlines
Mon 11/1611:55 pm
BKK
-
SEA
1 stop29h 00m
Asiana Airlines
Deal found 3/6$638
This Trip.com deal was found by Cheapflights users on 3/9. 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 8/2910:15 am
SEA
-
BKK
1 stop31h 50m
Multiple Airlines
Tue 9/811:40 pm
BKK
-
SEA
1 stop34h 25m
Multiple Airlines
Deal found 3/9$639
This oojo deal was found by Cheapflights users on 3/6. 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 10/210:15 am
SEA
-
BKK
1 stop21h 15m
Singapore Airlines
Fri 10/163:30 pm
BKK
-
SEA
1 stop31h 15m
Singapore Airlines
Deal found 3/6$640
This oojo deal was found by Cheapflights users on 3/8. 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 5/510:15 am
SEA
-
BKK
1 stop19h 45m
Singapore Airlines
Tue 5/193:30 pm
BKK
-
SEA
2 stops31h 27m
Singapore Airlines
Deal found 3/8$643
This Philippine Airlines deal was found by Cheapflights users on 3/8. 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.
Sun 9/1311:10 pm
SEA
-
BKK
1 stop33h 30m
Philippine Airlines
Mon 9/287:30 pm
BKK
-
SEA
1 stop38h 35m
Philippine Airlines
Deal found 3/8$644
This Vliegwinkel deal was found by Cheapflights users on 3/10. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:55 am
SEA
-
BKK
1 stop19h 45m
Asiana Airlines
Sun 5/171:20 am
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Deal found 3/10$645
This Mytrip deal was found by Cheapflights users on 3/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1612:10 am
SEA
-
BKK
1 stop30h 50m
Asiana Airlines
Sun 11/2911:55 pm
BKK
-
SEA
1 stop29h 00m
Asiana Airlines
Deal found 3/10$646
This oojo deal was found by Cheapflights users on 3/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1110:15 am
SEA
-
BKK
1 stop31h 50m
Singapore Airlines
Fri 11/133:50 pm
BKK
-
SEA
1 stop30h 20m
Singapore Airlines
Deal found 3/10$647
This oojo deal was found by Cheapflights users on 3/9. 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 4/2312:55 am
SEA
-
BKK
1 stop32h 25m
Asiana Airlines
Sun 5/101:20 am
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Deal found 3/9$653
This oojo deal was found by Cheapflights users on 3/9. 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 5/312:55 am
SEA
-
BKK
1 stop32h 25m
Asiana Airlines
Wed 5/201:20 am
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Deal found 3/9$654

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$639
(Trip.com)

One-way from

$343
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$753
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. 14% potential increase in price ($143 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 March 2026

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 March 10, 2026.
Use the filters below to find and compare flights from Seattle to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 8/17

1:05 pm-9:45 pm

1 stop18h 40m

Bangkok Suvarnabhumi

Mon 8/31

9:40 pm-1:37 pm

1 stop29h 57m

$778

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 4/27

7:00 am-11:35 pm

2 stops26h 35m

Bangkok Suvarnabhumi

Sun 6/21

2:35 am-3:24 pm

2 stops26h 49m

$816

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Wed 4/29

8:42 am-9:35 am

3 stops34h 53m

Bangkok Suvarnabhumi

Tue 5/12

9:35 am-6:32 pm

2 stops46h 57m

$890

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sun 8/23

9:25 pm-1:05 am

2 stops37h 40m

Bangkok Suvarnabhumi

Sun 8/30

11:30 pm-7:05 pm

2 stops33h 35m

$938

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Fri 4/24

8:45 am-9:35 am

2 stops34h 50m

Bangkok Suvarnabhumi

Sun 5/3

3:45 pm-1:12 am

2 stops47h 27m

$952

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Thu 5/7

7:08 am-9:35 am

2 stops36h 27m

Bangkok Suvarnabhumi

Tue 5/19

3:45 pm-6:32 pm

3 stops40h 47m

$1,019

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Thu 4/2

8:41 am-10:00 am

2 stops35h 19m

Bangkok Suvarnabhumi

Mon 4/13

7:10 pm-3:42 pm

2 stops34h 32m

$1,097

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 4/6

7:37 pm-9:35 am

2 stops47h 58m

Bangkok Suvarnabhumi

Thu 5/14

7:00 am-9:06 pm

3 stops28h 06m

$1,139

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Fri 5/8

6:58 pm-9:35 am

2 stops24h 37m

Bangkok Suvarnabhumi

Thu 5/14

7:00 am-9:06 pm

3 stops28h 06m

$1,158

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 4/6

7:37 pm-9:35 am

3 stops47h 58m

Bangkok Suvarnabhumi

Fri 5/8

3:45 pm-10:43 am

3 stops32h 58m

$1,180

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
oojoPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Bangkok Suvarnabhumi Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 March 6, 2026.

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, April is the cheapest month in which you can book a flight from Seattle to Bangkok Suvarnabhumi Airport (average of $509). Flying from Seattle to Bangkok Suvarnabhumi Airport in June is currently the most expensive (average of $791). 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.

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 March 10, 2026.
See what other customers who have flown with STARLUX Airlines,EVA Air, andChina Airlines 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.

Boarding

8.9

Entertainment

8.8

Overall

8.9

Food

8.7

Comfort

8.9

Crew

9.2

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.

Boarding

8.9

Entertainment

8.8

Overall

8.9

Food

8.7

Comfort

8.9

Crew

9.2

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.

Boarding

8.9

Entertainment

8.8

Overall

8.9

Food

8.7

Comfort

8.9

Crew

9.2

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.

Boarding

8.9

Entertainment

8.8

Overall

8.9

Food

8.7

Comfort

8.9

Crew

9.2

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.

Boarding

8.9

Entertainment

8.8

Overall

8.9

Food

8.7

Comfort

8.9

Crew

9.2

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.

Boarding

8.9

Entertainment

8.8

Overall

8.9

Food

8.7

Comfort

8.9

Crew

9.2

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 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 Delta, Korean Air, and United Airlines fly from Seattle to Bangkok Suvarnabhumi Airport in about 18h 40m. The time it takes to get you to your destination can typically vary by up to 16h 13m. Seattle and Bangkok Suvarnabhumi Airport are separated by a distance of 7443 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, Philippine Airlines ($154), Singapore Airlines ($510), and Asiana Airlines ($627) offers the cheapest pricing from Seattle to Bangkok Suvarnabhumi Airport. These flights start at 82% 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 ($277), Philippine Airlines ($301), 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, Raohe Street Night Market, and Shilin 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, Raohe Street Night Market, or Shilin Night Market can do so by traveling 21.0 mi, 21.6 mi, and 18.3 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 $72 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 $49 per day.

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

    Sentosa, Universal Studios Singapore, and Merlion are currently the most popular points of interest in Singapore. Those on a layover in Singapore interested in visiting Sentosa, Universal Studios Singapore, or Merlion can do so by traveling 13.4 mi, 13.4 mi, and 10.5 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 $93.

  • 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, April is the cheapest month in which you can book a flight from Seattle to Bangkok Suvarnabhumi Airport (average of $509). Flying from Seattle to Bangkok Suvarnabhumi Airport in June is currently the most expensive (average of $791). 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
Kanchanaburi
Chonburi
Cha-am
Ko Samet
Sattahip
Pak Chong
Ko Lan

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Suvarnabhumi

See prices for flight routes from nearby airports that may be better suited for you.

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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$154Average$684FlexibilityNo cancel feeOn-time60%
Singapore AirlinesCheapest$510Average$670FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$627Average$688FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$661Average$745FlexibilityNo cancel feeOn-time81%
ANACheapest$681Average$862FlexibilityNo cancel feeOn-time80%
DeltaCheapest$694Average$862FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$697Average$922FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$704Average$798FlexibilityNo cancel feeOn-time72%
China AirlinesCheapest$719Average$815FlexibilityNo cancel feeOn-time70%
STARLUX AirlinesCheapest$740Average$852FlexibilityNo cancel feeOn-timeN/A

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