HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bangkok

$451+ Cheap flights from Seattle (SEA) to Bangkok

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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Bangkok with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Seattle/Tacoma Intl to Bangkok are usually found in October or September, booked 19 days in advance, depart on a Tuesday or Monday and return on a Sunday

Cheap flight deals from Seattle to Bangkok

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Bangkok (TH1). 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 November 21, 2024.

Popular in

June

Cheapest in

October

Round-trip from

$767
(oojo)

One-way from

$451
(Gurufare)
High demand for flights, 24% potential price rise
Search Deals
Best time to find cheap flights, 20% potential price drop
Search Deals
From Seattle/Tacoma Intl to Bangkok
Search Deals
One-way flight from Seattle/Tacoma Intl to Bangkok
Search Deals

Find flight deals from Seattle to Bangkok

Cheapest flights from Seattle to Bangkok
Explore the most affordable flight options available from Seattle to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Korean Air deal was found by Cheapflights users on 11/20. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2711:00 amSEA - BKK
1 stop35h 15mKorean Air
Sun 12/811:15 pmBKK - SEA
1 stop24h 45mKorean Air
Deal found 11/20$779
This oojo deal was found by Cheapflights users on 11/20. 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 12/27:00 pmSEA - BKK
1 stop42h 40mTurkish Airlines
Wed 1/2910:50 pmBKK - SEA
1 stop33h 15mTurkish Airlines
Deal found 11/20$797
This Gurufare deal was found by Cheapflights users on 11/21. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2512:10 amSEA - BKK
1 stop25h 35mChina Airlines
Tue 12/102:05 pmBKK - SEA
1 stop19h 10mChina Airlines
Deal found 11/21$826
This Gurufare deal was found by Cheapflights users on 11/21. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/47:05 amSEA - BKK
2 stops26h 50mChina Eastern
Tue 12/101:55 amBKK - SEA
2 stops28h 00mChina Eastern
Deal found 11/21$830
This FlightHub deal was found by Cheapflights users on 11/20. 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 12/112:45 pmSEA - BKK
1 stop20h 35mAsiana Airlines
Fri 12/2011:55 pmBKK - SEA
1 stop26h 00mAsiana Airlines
Deal found 11/20$851
This Gurufare deal was found by Cheapflights users on 11/21. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2711:00 amSEA - BKK
1 stop21h 20mMultiple Airlines
Tue 12/1011:15 pmBKK - SEA
1 stop33h 55mMultiple Airlines
Deal found 11/21$868
This FlightHub deal was found by Cheapflights users on 11/21. 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 11/2811:30 pmSEA - BKK
1 stop33h 10mEVA Air
Mon 12/92:15 amBKK - SEA
1 stop30h 25mEVA Air
Deal found 11/21$881
This Gurufare deal was found by Cheapflights users on 11/21. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2812:10 pmSEA - BKK
1 stop20h 25mJapan Airlines
Thu 12/128:05 amBKK - SEA
1 stop16h 45mJapan Airlines
Deal found 11/21$884
This Gurufare deal was found by Cheapflights users on 11/21. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/263:40 pmSEA - BKK
1 stop33h 40mANA
Wed 12/119:25 amBKK - SEA
1 stop18h 55mANA
Deal found 11/21$891
This Ovago deal was found by Cheapflights users on 11/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2810:00 amSEA - BKK
2 stops33h 05mHainan Airlines
Wed 1/297:10 pmBKK - SEA
1 stop27h 50mHainan Airlines
Deal found 11/20$983
This KAYAK deal was found by Cheapflights users on 11/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2412:05 amSEA - BKK
1 stop25h 25mSTARLUX Airlines
Sun 1/261:45 pmBKK - SEA
1 stop16h 20mSTARLUX Airlines
Deal found 11/20$1,035
This Air Canada deal was found by Cheapflights users on 11/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/43:05 pmSEA - BKK
1 stop24h 10mAir Canada
Mon 2/108:35 amBKK - SEA
1 stop20h 55mAir Canada
Deal found 11/20$1,049

Find flights from Seattle to Bangkok within your budget

Customize your flight search to find flights from Seattle to Bangkok 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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Tue 2/4

12:45 pm-12:20 am

1 stop20h 35m

Bangkok Suvarnabhumi

Mon 2/17

11:55 pm-10:55 am

1 stop26h 00m

$767

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 1/20

10:35 am-6:35 am

2 stops29h 00m

Bangkok Suvarnabhumi

Sun 1/26

3:15 pm-1:20 pm

1 stop37h 05m

$768

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 2/10

3:45 pm-5:10 am

1 stop22h 25m

Bangkok Suvarnabhumi

Thu 2/20

7:10 am-10:45 pm

2 stops30h 35m

$778

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Wed 11/27

11:00 am-1:15 pm

1 stop35h 15m

Bangkok Suvarnabhumi

Sun 12/8

11:15 pm-9:00 am

1 stop24h 45m

$779

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Fri 2/14

10:50 am-12:45 am

1 stop22h 55m

Bangkok Suvarnabhumi

Tue 2/18

11:15 pm-1:35 pm

1 stop29h 20m

$780

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Thu 2/6

6:10 am-12:05 am

2 stops26h 55m

Bangkok Suvarnabhumi

Wed 2/19

3:15 pm-1:20 pm

1 stop37h 05m

$787

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Thu 11/28

12:10 pm-11:35 pm

1 stop20h 25m

Bangkok Suvarnabhumi

Tue 1/28

8:05 am-6:50 pm

2 stops25h 45m

$789

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 12/2

7:00 pm-4:40 am

1 stop42h 40m

Bangkok Suvarnabhumi

Mon 12/16

6:15 am-5:05 pm

1 stop25h 50m

$800

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Tue 1/28

12:10 am-9:50 am

1 stop18h 40m

Bangkok Suvarnabhumi

Sun 2/9

2:35 am-6:15 pm

1 stop30h 40m

$813

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Wed 12/4

7:05 am-12:55 am

2 stops26h 50m

Bangkok Suvarnabhumi

Tue 12/10

1:55 am-2:55 pm

2 stops28h 00m

$830

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 29 results
1
2
3

Best time to book a flight from Seattle to Bangkok

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Bangkok. Price data was last updated on November 15, 2024.

To ensure you get the cheapest price possible for a flight from Seattle to Bangkok, you should look to book at least 19 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Seattle to Bangkok (average of $979). Flying from Seattle to Bangkok in June is currently the most expensive (average of $1,585). 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 Bangkok. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

A simple way to save on the total cost of your ticket is to fly from Seattle to Bangkok in the morning. If you’re flexible enough to do this you can expect to save up to 6% on your trip compared to booking a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Bangkok. Price data was last updated on November 18, 2024.

Travelers seeking maximum savings on their Seattle to Bangkok 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.

Rainfall in Bangkok by month

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

In terms of precipitation, rainfall in Bangkok 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 Bangkok when rainfall is around 0.4 in.

Temperature in Bangkok by month

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

If weather is an important factor for your trip to Bangkok, 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 Bangkok

Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated November 21, 2024.
Read through reviews of airlines operating flights from Seattle to Bangkok, such as Asiana Airlines, Korean Air and ANA. 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
126 reviews

Boarding

9.1

Crew

9.3

Comfort

9.0

Food

9.0

Overall

9.1

Entertainment

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

STARLUX Airlines
9.1
Wonderful
126 reviews
STARLUX Airlines
9.1
Wonderful
126 reviews

Boarding

9.1

Crew

9.3

Comfort

9.0

Food

9.0

Overall

9.1

Entertainment

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

Korean Air
8.5
Very good
1,024 reviews
STARLUX Airlines
9.1
Wonderful
126 reviews

Boarding

9.1

Crew

9.3

Comfort

9.0

Food

9.0

Overall

9.1

Entertainment

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

EVA Air
8.4
Very good
1,308 reviews
STARLUX Airlines
9.1
Wonderful
126 reviews

Boarding

9.1

Crew

9.3

Comfort

9.0

Food

9.0

Overall

9.1

Entertainment

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

ANA
8.4
Very good
833 reviews
STARLUX Airlines
9.1
Wonderful
126 reviews

Boarding

9.1

Crew

9.3

Comfort

9.0

Food

9.0

Overall

9.1

Entertainment

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

Japan Airlines
8.3
Very good
1,457 reviews
STARLUX Airlines
9.1
Wonderful
126 reviews

Boarding

9.1

Crew

9.3

Comfort

9.0

Food

9.0

Overall

9.1

Entertainment

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

Related info for your journey

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

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Bangkok. 18 airlines have flights from Seattle/Tacoma Intl to Bangkok on a regular basis. Booking flights from Seattle/Tacoma Intl to Bangkok should not be difficult; the airport handles an average of 0 outbound flights to Bangkok per day.

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

    Asiana Airlines, at $767, was found to be the cheapest airline from Seattle to Bangkok.Alternate airlines to your destination round-trip include Korean Air and ANA. Asiana Airlines is 31% cheaper than the average price of flights available within the next 90 days to this destination.

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

    $451 is the cheapest one-way deal found within the past few days, from Korean Air. You may also be able to find cheap deals on ANA and Asiana Airlines, with prices starting from $455 and $463, respectively.

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

    The most popular layover on flights from Seattle to Bangkok is Taipei City. Taipei City is followed by Incheon in terms of the most popular layover location on flights from Seattle to Bangkok. Tokyo ranks third in terms of the most popular layover location on Seattle to Bangkok 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. Travelers can book a car rental at Taipei City Taiwan Taoyuan Intl for about $82 per day to make their sightseeing more efficient.

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

    The majority of Incheon visitors spend their time at Wolmido Amusement Park, G Tower, and Moraenae Market. Wolmido Amusement Park, G Tower, and Moraenae Market can be accessed by traveling approximately 8.3 mi, 10.7 mi, and 14.7 mi, respectively from Incheon Intl. Travelers in need of a car in Incheon can rent one for about $61 per day.

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

    Most Tokyo visitors opt to spend their time at Akihabara Electric Town, Ueno Koen, and Roppongi Hills. Akihabara Electric Town, Ueno Koen and Roppongi Hills are located about 10.3 mi, 11.5 mi, and 8.5 mi, respectively from Tokyo Haneda if you are interested in checking them out. Those on a layover in Tokyo in need of a rental car can book one at Tokyo Haneda for about $60.

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

    Seattle to Bangkok flights have a layover in Istanbul the least frequently. Seattle to Bangkok flights stopping in San Francisco are the next rarest. Singapore follows San Francisco in terms of the least frequent layover locations on Seattle to Bangkok flights.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Bangkok 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?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Bangkok (average of $979). Flying from Seattle to Bangkok in June is currently the most expensive (average of $1,585). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Seattle to Bangkok

Discover the top 10 airlines that operate flights from Seattle to Bangkok. 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$583Average$857FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$734Average$774FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$735Average$920FlexibilityNo cancel feeOn-time76%
China EasternCheapest$755Average$871FlexibilityNo cancel feeOn-time62%
China AirlinesCheapest$755Average$852FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$786Average$1,098FlexibilityNo cancel feeOn-time81%
ANACheapest$798Average$1,053FlexibilityNo cancel feeOn-time80%
STARLUX AirlinesCheapest$816Average$909FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$819Average$1,028FlexibilityNo cancel feeOn-time77%
Japan AirlinesCheapest$875Average$1,104FlexibilityNo cancel feeOn-time79%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines