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$384+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BKK
Jan 10 — Jan 171
Fri 1/10
Fri 1/17
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 January 5, 2025.

Round-trip from

$641
(FlightHub)

One-way from

$384
(Kiwi.com)
From Seattle/Tacoma Intl to Thailand
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One-way flight from Seattle/Tacoma Intl to Thailand
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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 January 5, 2025.

This FlightHub deal was found by Cheapflights users on 1/4. 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 2/1712:45 pmSEA - CNX
1 stop19h 20mAsiana Airlines
Tue 3/1812:25 amCNX - SEA
1 stop25h 30mAsiana Airlines
Deal found 1/4$641
This FlightHub deal was found by Cheapflights users on 1/4. 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.
Tue 3/48:40 amSEA - HKT
1 stop33h 35mSingapore Airlines
Wed 3/268:40 amHKT - SEA
1 stop37h 30mSingapore Airlines
Deal found 1/4$664
This Flightnetwork deal was found by Cheapflights users on 1/4. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/1612:45 pmSEA - BKK
1 stop20h 35mAsiana Airlines
Thu 2/271:50 amBKK - SEA
1 stop24h 05mAsiana Airlines
Deal found 1/4$690
This eDestinos deal was found by Cheapflights users on 1/5. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/17:00 amSEA - BKK
2 stops26h 55mANA
Tue 5/137:00 amBKK - SEA
2 stops22h 58mANA
Deal found 1/5$709
This ScholarTrip deal was found by Cheapflights users on 1/4. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/239:40 amSEA - BKK
1 stop41h 20mSingapore Airlines
Sat 3/298:00 pmBKK - SEA
1 stop26h 45mSingapore Airlines
Deal found 1/4$714
This CrystalTravel deal was found by Cheapflights users on 1/4. 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 1/3011:00 amSEA - BKK
1 stop19h 30mKorean Air
Tue 3/111:00 amBKK - SEA
1 stop23h 00mKorean Air
Deal found 1/4$719
This Delta deal was found by Cheapflights users on 1/4. 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.
Thu 2/2010:44 amSEA - BKK
1 stop21h 36mDelta
Fri 3/79:30 pmBKK - SEA
1 stop31h 05mDelta
Deal found 1/4$759
This Ovago deal was found by Cheapflights users on 1/4. 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.
Sat 5/177:10 amSEA - CNX
2 stops40h 15mChina Eastern
Thu 5/292:55 pmCNX - SEA
2 stops40h 05mChina Eastern
Deal found 1/4$763
This United Airlines deal was found by Cheapflights users on 1/5. 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.
Sun 3/97:00 amSEA - BKK
2 stops32h 10mUnited Airlines
Mon 6/99:35 amBKK - SEA
1 stop18h 50mUnited Airlines
Deal found 1/5$771
This Ovago deal was found by Cheapflights users on 1/5. 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.
Sat 2/16:10 amSEA - BKK
2 stops28h 45mChina Eastern
Sat 5/172:30 amBKK - SEA
2 stops28h 30mChina Eastern
Deal found 1/5$784
This FlightHub deal was found by Cheapflights users on 1/4. 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.
Wed 9/171:30 pmSEA - BKK
1 stop19h 30mJapan Airlines
Tue 10/712:25 amBKK - SEA
2 stops31h 25mJapan Airlines
Deal found 1/4$786
This United deal was found by Cheapflights users on 1/4. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/166:15 amSEA - BKK
2 stops26h 50mMultiple Airlines
Wed 3/123:00 pmBKK - SEA
1 stop37h 20mMultiple Airlines
Deal found 1/4$788

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 2,558,603 searches. Data last updated January 5, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Mon 2/17

12:45 pm-11:05 pm

1 stop19h 20m

Chiang Mai

Mon 3/17

12:25 am-11:55 am

1 stop25h 30m

$641

SeattlePhuket City

SEA - HKT

SEAHKT

Seattle/Tacoma Intl

Tue 3/4

8:40 am-9:15 am

1 stop33h 35m

Phuket City

Wed 3/26

8:40 am-8:10 am

1 stop37h 30m

$664

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sun 2/16

12:45 pm-12:20 am

1 stop20h 35m

Bangkok Suvarnabhumi

Thu 2/27

1:50 am-10:55 am

1 stop24h 05m

$690

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Thu 5/1

7:00 am-11:55 pm

2 stops26h 55m

Bangkok Suvarnabhumi

Tue 5/13

7:00 am-3:58 pm

2 stops22h 58m

$709

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Thu 1/30

11:00 am-9:30 pm

1 stop19h 30m

Bangkok Suvarnabhumi

Tue 3/11

1:00 am-10:00 am

1 stop23h 00m

$719

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sat 4/12

10:15 am-7:00 pm

1 stop42h 45m

Bangkok Suvarnabhumi

Fri 4/25

8:10 pm-8:45 am

1 stop26h 35m

$726

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Thu 2/20

10:44 am-11:20 pm

1 stop21h 36m

Bangkok Suvarnabhumi

Mon 3/3

9:30 pm-1:35 pm

1 stop31h 05m

$759

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Sat 5/17

7:10 am-1:25 pm

2 stops40h 15m

Chiang Mai

Thu 5/29

2:55 pm-5:00 pm

2 stops40h 05m

$763

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sun 3/9

7:00 am-5:10 am

2 stops32h 10m

Bangkok Suvarnabhumi

Mon 6/9

9:35 am-2:25 pm

1 stop18h 50m

$771

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sun 2/16

6:15 am-12:05 am

2 stops26h 50m

Bangkok Suvarnabhumi

Wed 3/12

3:00 pm-2:20 pm

1 stop37h 20m

$788

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/4

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, October is the cheapest month in which you can book a flight from Seattle to Thailand (average of $996). 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 January 5, 2025.

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 January 5, 2025.
Read reviews from past customers who have flown Korean Air, Delta and United 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
130 reviews

Entertainment

9.1

Comfort

9.0

Boarding

9.1

Overall

9.1

Crew

9.3

Food

9.0

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
130 reviews
STARLUX Airlines
9.1
Wonderful
130 reviews

Entertainment

9.1

Comfort

9.0

Boarding

9.1

Overall

9.1

Crew

9.3

Food

9.0

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
1,029 reviews
STARLUX Airlines
9.1
Wonderful
130 reviews

Entertainment

9.1

Comfort

9.0

Boarding

9.1

Overall

9.1

Crew

9.3

Food

9.0

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
1,245 reviews
STARLUX Airlines
9.1
Wonderful
130 reviews

Entertainment

9.1

Comfort

9.0

Boarding

9.1

Overall

9.1

Crew

9.3

Food

9.0

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
842 reviews
STARLUX Airlines
9.1
Wonderful
130 reviews

Entertainment

9.1

Comfort

9.0

Boarding

9.1

Overall

9.1

Crew

9.3

Food

9.0

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
1,441 reviews
STARLUX Airlines
9.1
Wonderful
130 reviews

Entertainment

9.1

Comfort

9.0

Boarding

9.1

Overall

9.1

Crew

9.3

Food

9.0

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?

    $384 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 Singapore Airlines and ANA, with prices starting from $393 and $404, respectively.

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

    While some choose either Seattle/Tacoma Intl - Bangkok Don Mueang Intl or Seattle/Tacoma Intl - Phuket City, 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, October is the cheapest month in which you can book a flight from Seattle to Thailand (average of $996). 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 2,558,603 searches. Data last updated January 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$644Average$922FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$657Average$845FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$727Average$1,180FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$734Average$776FlexibilityNo cancel feeOn-time60%
China AirlinesCheapest$749Average$842FlexibilityNo cancel feeOn-time70%
China EasternCheapest$755Average$874FlexibilityNo cancel feeOn-time62%
ANACheapest$763Average$993FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$787Average$994FlexibilityNo cancel feeOn-time69%
STARLUX AirlinesCheapest$817Average$909FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$817Average$1,014FlexibilityNo cancel feeOn-time77%
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