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$429+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
Dec 7 — Dec 141
Sat 12/7
Sat 12/14
1 adult, Economy
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Cheap flight deals from Seattle to Thailand

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Thailand (TH0). 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 2, 2024.

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 December 2, 2024.

This CrystalTravel deal was found by Cheapflights users on 12/1. 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 12/3012:45 pmSEA - BKK
1 stop20h 35mAsiana Airlines
Thu 3/2711:55 pmBKK - SEA
1 stop26h 00mAsiana Airlines
Deal found 12/1$796
This Gotogate deal was found by Cheapflights users on 12/2. 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.
Thu 12/510:00 amSEA - BKK
2 stops33h 05mHainan Airlines
Wed 12/1111:10 amBKK - SEA
1 stop35h 50mHainan Airlines
Deal found 12/2$949
This oojo deal was found by Cheapflights users on 12/2. 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 12/212:10 amSEA - BKK
1 stop21h 55mChina Airlines
Thu 9/181:20 pmBKK - SEA
1 stop20h 10mChina Airlines
Deal found 12/2$952
This Justfly.com deal was found by Cheapflights users on 12/2. 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 Justfly.com 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
Wed 1/228:00 amBKK - SEA
2 stops45h 30mAir Canada
Deal found 12/2$979
This Gurufare deal was found by Cheapflights users on 12/2. 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.
Sat 12/711:30 pmSEA - BKK
1 stop22h 05mMultiple Airlines
Wed 12/251:40 pmBKK - SEA
1 stop19h 30mMultiple Airlines
Deal found 12/2$996
This Kiwi.com deal was found by Cheapflights users on 11/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/3011:30 pmSEA - BKK
1 stop33h 10mEVA Air
Mon 12/92:15 amBKK - SEA
1 stop30h 25mEVA Air
Deal found 11/30$1,000
This CheapOair deal was found by Cheapflights users on 12/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/56:20 amSEA - BKK
2 stops28h 35mChina Eastern
Sat 12/75:05 amBKK - SEA
2 stops24h 50mChina Eastern
Deal found 12/1$1,005
This oojo deal was found by Cheapflights users on 12/1. 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 12/47:00 pmSEA - BKK
1 stop22h 20mTurkish Airlines
Mon 2/106:15 amBKK - SEA
1 stop25h 50mTurkish Airlines
Deal found 12/1$1,048
This oojo deal was found by Cheapflights users on 12/2. 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 12/212:10 amSEA - CNX
1 stop19h 25mEVA Air
Tue 12/1011:50 amCNX - SEA
1 stop20h 50mEVA Air
Deal found 12/2$1,061
This CrystalTravel deal was found by Cheapflights users on 12/2. 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.
Fri 12/611:00 amSEA - BKK
1 stop22h 45mKorean Air
Sun 12/811:15 pmBKK - SEA
1 stop24h 45mKorean Air
Deal found 12/2$1,066
This KAYAK deal was found by Cheapflights users on 12/2. 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.
Wed 12/412:05 amSEA - BKK
1 stop25h 25mSTARLUX Airlines
Thu 12/125:40 pmBKK - SEA
1 stop36h 25mSTARLUX Airlines
Deal found 12/2$1,079
This Gurufare deal was found by Cheapflights users on 12/1. 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 12/313:40 pmSEA - BKK
1 stop22h 30mANA
Wed 2/127:10 amBKK - SEA
2 stops21h 22mANA
Deal found 12/1$1,097

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 2,650,959 searches. Data last updated December 2, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Wed 2/26

12:45 pm-11:05 pm

1 stop19h 20m

Chiang Mai

Thu 3/6

12:25 am-10:55 am

1 stop25h 30m

$652

SeattlePhuket City

SEA - HKT

SEAHKT

Seattle/Tacoma Intl

Thu 3/20

9:40 am-7:50 am

1 stop32h 10m

Phuket City

Mon 3/31

11:40 am-8:45 am

1 stop35h 05m

$723

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 1/27

11:00 am-9:30 pm

1 stop19h 30m

Bangkok Suvarnabhumi

Tue 2/25

1:00 am-9:00 am

1 stop23h 00m

$762

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sat 2/8

12:45 pm-12:20 am

1 stop20h 35m

Bangkok Suvarnabhumi

Thu 2/27

11:55 pm-10:55 am

1 stop26h 00m

$765

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sun 1/19

3:45 pm-6:35 am

1 stop23h 50m

Bangkok Suvarnabhumi

Sun 1/26

3:15 pm-1:20 pm

1 stop37h 05m

$768

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 3/3

12:10 am-9:50 am

1 stop18h 40m

Bangkok Suvarnabhumi

Mon 3/17

2:35 am-7:15 pm

1 stop30h 40m

$774

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Mon 1/13

10:41 am-9:30 pm

1 stop19h 49m

Bangkok Suvarnabhumi

Sun 1/26

1:00 am-1:19 pm

1 stop27h 19m

$781

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Tue 1/14

9:20 am-12:05 am

3 stops47h 45m

Bangkok Suvarnabhumi

Tue 5/13

9:35 am-2:25 pm

1 stop18h 50m

$790

SeattlePhuket City

SEA - HKT

SEAHKT

Seattle/Tacoma Intl

Tue 2/11

12:45 pm-7:45 am

2 stops28h 00m

Phuket City

Tue 2/25

8:55 am-10:55 am

2 stops41h 00m

$793

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Sun 3/2

3:45 pm-9:20 am

2 stops26h 35m

Chiang Mai

Tue 3/25

12:15 pm-2:20 pm

2 stops40h 05m

$794

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

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, September is the cheapest month in which you can book a flight from Seattle to Thailand (average of $979). Flying from Seattle to Thailand 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 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 December 2, 2024.

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 December 2, 2024.
Read reviews from past customers who have flown Turkish Airlines, Korean Air and China Airlines 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
128 reviews

Comfort

9.0

Entertainment

9.1

Food

9.0

Crew

9.3

Boarding

9.1

Overall

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
128 reviews
STARLUX Airlines
9.1
Wonderful
128 reviews

Comfort

9.0

Entertainment

9.1

Food

9.0

Crew

9.3

Boarding

9.1

Overall

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
1,019 reviews
STARLUX Airlines
9.1
Wonderful
128 reviews

Comfort

9.0

Entertainment

9.1

Food

9.0

Crew

9.3

Boarding

9.1

Overall

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
1,293 reviews
STARLUX Airlines
9.1
Wonderful
128 reviews

Comfort

9.0

Entertainment

9.1

Food

9.0

Crew

9.3

Boarding

9.1

Overall

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
830 reviews
STARLUX Airlines
9.1
Wonderful
128 reviews

Comfort

9.0

Entertainment

9.1

Food

9.0

Crew

9.3

Boarding

9.1

Overall

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
1,450 reviews
STARLUX Airlines
9.1
Wonderful
128 reviews

Comfort

9.0

Entertainment

9.1

Food

9.0

Crew

9.3

Boarding

9.1

Overall

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 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?

    $429 is the cheapest one-way deal found within the past few days, from Asiana Airlines. You may also be able to find cheap deals on ANA and United Airlines, with prices starting from $454 and $456, respectively.

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

    While some choose either Seattle/Tacoma Intl - Phuket City or Seattle/Tacoma Intl - Bangkok Don Mueang Intl, 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, September is the cheapest month in which you can book a flight from Seattle to Thailand (average of $979). Flying from Seattle to Thailand 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

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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 2,650,959 searches. Data last updated December 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$603Average$931FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$695Average$873FlexibilityNo cancel feeOn-time76%
Philippine AirlinesCheapest$734Average$775FlexibilityNo cancel feeOn-time60%
China AirlinesCheapest$749Average$842FlexibilityNo cancel feeOn-time70%
China EasternCheapest$755Average$878FlexibilityNo cancel feeOn-time62%
Korean AirCheapest$755Average$1,210FlexibilityNo cancel feeOn-time81%
ANACheapest$787Average$1,032FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$800Average$994FlexibilityNo cancel feeOn-time69%
STARLUX AirlinesCheapest$816Average$912FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$819Average$1,135FlexibilityNo cancel feeOn-time77%
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