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Suvarnabhumi

$373+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
Jul 1 — Jul 81
Tue 7/1
Tue 7/8
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Bangkok Suvarnabhumi are usually found in February or March, booked 61 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap 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 June 26, 2025.

Round-trip from

$735
(FlightHub)

One-way from

$373
(FlightHub)

Popular in

December

Cheapest in

February

Average price

$1,195
From Seattle/Tacoma Intl to Bangkok Suvarnabhumi
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One-way flight from Seattle/Tacoma Intl to Bangkok Suvarnabhumi
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Highest demand for flights based on searches. 6% potential increase in price ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 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 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 June 26, 2025.

This Asiana Airlines deal was found by Cheapflights users on 6/26. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2812:10 amSEA - BKK
1 stop30h 55mAsiana Airlines
Tue 3/3111:55 pmBKK - SEA
1 stop29h 00mAsiana Airlines
Deal found 6/26$724
This oojo deal was found by Cheapflights users on 6/26. 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.
Tue 11/1111:00 amSEA - BKK
1 stop22h 45mKorean Air
Thu 12/189:30 pmBKK - SEA
1 stop26h 30mKorean Air
Deal found 6/26$727
This Delta deal was found by Cheapflights users on 6/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2912:55 pmSEA - BKK
1 stop22h 10mDelta
Mon 9/811:30 pmBKK - SEA
1 stop28h 10mDelta
Deal found 6/26$736
This FlightHub deal was found by Cheapflights users on 6/26. 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.
Mon 10/66:50 pmSEA - BKK
2 stops26h 10mSingapore Airlines
Mon 10/209:20 amBKK - SEA
1 stop37h 25mSingapore Airlines
Deal found 6/26$746
This oojo deal was found by Cheapflights users on 6/24. 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 9/1911:35 pmSEA - BKK
1 stop28h 05mPhilippine Airlines
Sun 10/51:30 pmBKK - SEA
1 stop19h 45mPhilippine Airlines
Deal found 6/24$747
This oojo deal was found by Cheapflights users on 6/25. 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 10/281:10 amSEA - BKK
1 stop18h 40mChina Airlines
Sun 11/162:35 amBKK - SEA
1 stop30h 40mChina Airlines
Deal found 6/25$749
This CrystalTravel deal was found by Cheapflights users on 6/25. 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.
Thu 8/2810:00 amSEA - BKK
2 stops28h 35mANA
Thu 10/307:10 amBKK - SEA
2 stops23h 05mANA
Deal found 6/25$755
This United Airlines deal was found by Cheapflights users on 6/25. 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 8/266:25 amSEA - BKK
2 stops32h 10mUnited Airlines
Tue 9/99:35 amBKK - SEA
1 stop18h 50mUnited Airlines
Deal found 6/25$789
This oojo deal was found by Cheapflights users on 6/25. 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 8/131:15 amSEA - BKK
1 stop20h 45mSTARLUX Airlines
Wed 9/241:10 pmBKK - SEA
1 stop17h 00mSTARLUX Airlines
Deal found 6/25$796
This Japan Airlines deal was found by Cheapflights users on 6/23. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/11:30 pmSEA - BKK
2 stops25h 10mJapan Airlines
Sun 9/2112:25 amBKK - SEA
2 stops35h 33mJapan Airlines
Deal found 6/23$836
This oojo deal was found by Cheapflights users on 6/25. 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 11/2512:10 amSEA - BKK
1 stop19h 35mEVA Air
Tue 12/92:15 amBKK - SEA
1 stop30h 55mEVA Air
Deal found 6/25$837
This Gurufare deal was found by Cheapflights users on 6/26. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/72:15 pmSEA - BKK
1 stop18h 55mMultiple Airlines
Tue 12/91:00 amBKK - SEA
1 stop27h 55mMultiple Airlines
Deal found 6/26$867

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 June 26, 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

Sun 11/16

12:10 am-10:05 pm

1 stop30h 55m

Bangkok Suvarnabhumi

Sat 1/17

11:55 pm-1:55 pm

1 stop29h 00m

$725

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Tue 11/11

11:00 am-12:45 am

1 stop22h 45m

Bangkok Suvarnabhumi

Thu 12/18

9:30 pm-9:00 am

1 stop26h 30m

$727

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Fri 8/29

12:55 pm-1:05 am

1 stop22h 10m

Bangkok Suvarnabhumi

Mon 9/8

11:30 pm-1:40 pm

1 stop28h 10m

$736

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 10/6

6:50 pm-11:00 am

2 stops26h 10m

Bangkok Suvarnabhumi

Mon 10/20

9:20 am-8:45 am

1 stop37h 25m

$746

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Fri 9/19

11:35 pm-5:40 pm

1 stop28h 05m

Bangkok Suvarnabhumi

Sun 10/5

1:30 pm-7:15 pm

1 stop19h 45m

$747

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Tue 10/28

1:10 am-1:05 pm

1 stop21h 55m

Bangkok Suvarnabhumi

Sun 11/16

2:35 am-6:15 pm

1 stop30h 40m

$749

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Thu 8/28

10:00 am-4:35 am

2 stops28h 35m

Bangkok Suvarnabhumi

Thu 10/30

7:10 am-4:15 pm

2 stops23h 05m

$755

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Tue 8/26

6:25 am-4:35 am

2 stops32h 10m

Bangkok Suvarnabhumi

Tue 9/9

9:35 am-2:25 pm

1 stop18h 50m

$789

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Wed 8/13

1:15 am-12:00 pm

1 stop20h 45m

Bangkok Suvarnabhumi

Wed 9/24

1:10 pm-4:10 pm

1 stop17h 00m

$796

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 9/1

1:30 pm-4:40 am

2 stops25h 10m

Bangkok Suvarnabhumi

Tue 9/16

12:25 am-9:58 pm

2 stops35h 33m

$836

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/24

Showing 1-10 of 25 results
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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 June 20, 2025.

The best time to book flights from Seattle to Bangkok Suvarnabhumi Airport is 61 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, March is the cheapest month in which you can book a flight from Seattle to Bangkok Suvarnabhumi Airport (average of $953). Flying from Seattle to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of $1,574). 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 June 26, 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 9% 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.

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 June 26, 2025.
See what other customers who have flown with STARLUX Airlines, EVA Air, and Korean Air 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.
STARLUX Airlines
9.1
Wonderful
185 reviews

Entertainment

9.0

Comfort

9.0

Crew

9.3

Food

8.8

Overall

9.1

Boarding

9.1

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
185 reviews
STARLUX Airlines
9.1
Wonderful
185 reviews

Entertainment

9.0

Comfort

9.0

Crew

9.3

Food

8.8

Overall

9.1

Boarding

9.1

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
1,208 reviews
STARLUX Airlines
9.1
Wonderful
185 reviews

Entertainment

9.0

Comfort

9.0

Crew

9.3

Food

8.8

Overall

9.1

Boarding

9.1

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
1,096 reviews
STARLUX Airlines
9.1
Wonderful
185 reviews

Entertainment

9.0

Comfort

9.0

Crew

9.3

Food

8.8

Overall

9.1

Boarding

9.1

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
1,505 reviews
STARLUX Airlines
9.1
Wonderful
185 reviews

Entertainment

9.0

Comfort

9.0

Crew

9.3

Food

8.8

Overall

9.1

Boarding

9.1

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
745 reviews
STARLUX Airlines
9.1
Wonderful
185 reviews

Entertainment

9.0

Comfort

9.0

Crew

9.3

Food

8.8

Overall

9.1

Boarding

9.1

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 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 18 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.

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

    According to our current data, Korean Air ($735), Delta ($736), and ANA ($743) offers the cheapest pricing from Seattle to Bangkok Suvarnabhumi Airport. These flights start at 22% 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 Asiana Airlines ($373), Korean Air ($374), and China Airlines ($392).

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

    Of the flights from Seattle to Bangkok Suvarnabhumi Airport that have layovers, most of them stop in Taipei City. Seoul sees the second most layovers for non-direct flights flying from Seattle to Bangkok Suvarnabhumi Airport. Tokyo follows Seoul in terms of the most frequent layover location on Seattle to Bangkok Suvarnabhumi Airport flights.

  • 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 $74 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 $55 per day.

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

    Akihabara Electric Town, Tsukiji Outer Market, and Ueno Koen are currently the most popular points of interest in Tokyo. Those on a layover in Tokyo interested in visiting Akihabara Electric Town, Tsukiji Outer Market, or Ueno Koen can do so by traveling 10.3 mi, 7.9 mi, and 11.5 mi, respectively from Tokyo Haneda. Those on a layover in Tokyo in need of a rental car can book one at Tokyo Haneda for about $69.

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

    The least popular layover on flights from Seattle to Bangkok Suvarnabhumi Airport is Istanbul. San Francisco sees the second fewest layovers for non-direct flights flying from Seattle to Bangkok Suvarnabhumi Airport. Tokyo comes next as the third least popular layover location 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, March is the cheapest month in which you can book a flight from Seattle to Bangkok Suvarnabhumi Airport (average of $953). Flying from Seattle to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of $1,574). 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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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 June 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$433Average$984FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$602Average$781FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$633Average$768FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$695Average$783FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$708Average$755FlexibilityNo cancel feeOn-time60%
STARLUX AirlinesCheapest$739Average$888FlexibilityNo cancel feeOn-timeN/A
China EasternCheapest$755Average$877FlexibilityNo cancel feeOn-time62%
China AirlinesCheapest$757Average$862FlexibilityNo cancel feeOn-time70%
ANACheapest$759Average$920FlexibilityNo cancel feeOn-time80%
Turkish AirlinesCheapest$773Average$1,080FlexibilityNo cancel feeOn-time77%

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