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$405+ Cheap flights from Thailand to Washington

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Thailand to Washington

Keep the following information in mind while searching for Thailand to Washington flight deals. Data was last updated February 20, 2025.

Round-trip from

$627
(oojo)

One-way from

$405
(Kiwi.com)

Popular in

January

Cheapest in

November

Average price

$843
From Thailand to Washington
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One-way flight from Thailand to Washington
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Thailand to Washington

Cheapest flights from Thailand to Washington
Explore the most affordable flight options available from Thailand to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This oojo deal was found by Cheapflights users on 2/19. 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 4/110:55 pmBKK - SEA
1 stop34h 25mPhilippine Airlines
Wed 4/3011:30 pmSEA - BKK
1 stop28h 10mPhilippine Airlines
Deal found 2/19$627
This Asiana Airlines deal was found by Cheapflights users on 2/20. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1712:25 amCNX - SEA
1 stop25h 30mAsiana Airlines
Tue 4/222:15 pmSEA - CNX
1 stop19h 25mAsiana Airlines
Deal found 2/20$661
This EaseMyTrip deal was found by Cheapflights users on 2/20. 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1712:25 amCNX - SEA
2 stops52h 28mMultiple Airlines
Tue 4/222:15 pmSEA - CNX
1 stop19h 25mMultiple Airlines
Deal found 2/20$741
This Gotogate deal was found by Cheapflights users on 2/19. 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 4/105:50 pmBKK - SEA
1 stop36h 20mSTARLUX Airlines
Tue 4/221:15 amSEA - BKK
1 stop20h 45mSTARLUX Airlines
Deal found 2/19$796
This Justfly.com deal was found by Cheapflights users on 2/19. 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.
Tue 9/164:45 pmBKK - SEA
1 stop16h 05mEVA Air
Tue 10/71:30 amSEA - BKK
1 stop19h 30mEVA Air
Deal found 2/19$825
This China Airlines deal was found by Cheapflights users on 2/20. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/312:40 amBKK - SEA
1 stop30h 50mChina Airlines
Tue 4/291:10 amSEA - BKK
1 stop21h 00mChina Airlines
Deal found 2/20$830
This Gotogate deal was found by Cheapflights users on 2/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2011:15 pmBKK - SEA
1 stop33h 55mMultiple Airlines
Thu 3/274:45 pmSEA - BKK
1 stop33h 35mMultiple Airlines
Deal found 2/20$845
This EVA Air deal was found by Cheapflights users on 2/20. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1811:50 amCNX - SEA
1 stop21h 20mEVA Air
Mon 4/211:30 amSEA - CNX
1 stop18h 55mEVA Air
Deal found 2/20$849
This oojo deal was found by Cheapflights users on 2/19. 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.
Sat 5/311:30 pmBKK - SEA
1 stop25h 10mKorean Air
Tue 5/1312:50 pmSEA - BKK
1 stop20h 50mKorean Air
Deal found 2/19$852
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/133:20 pmCNX - SEA
1 stop37h 20mDelta
Wed 4/2312:50 pmSEA - CNX
1 stop19h 05mDelta
Deal found 2/20$870
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/191:00 amBKK - SEA
1 stop27h 40mDelta
Thu 3/2711:35 amSEA - BKK
1 stop19h 55mDelta
Deal found 2/20$870
This Expedia deal was found by Cheapflights users on 2/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/53:20 pmCNX - SEA
1 stop32h 40mKorean Air
Thu 3/611:00 amSEA - CNX
1 stop21h 05mKorean Air
Deal found 2/20$871

Find flights from Thailand to Washington within your budget

Customize your flight search to find flights from Thailand to Washington 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 February 20, 2025.

Fly from

Thailand

Fly to

Washington

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 4/1

10:55 pm-7:20 pm

1 stop34h 25m

Seattle/Tacoma Intl

Wed 4/30

11:30 pm-5:40 pm

1 stop28h 10m

$627

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 3/17

12:25 am-11:55 am

1 stop25h 30m

Seattle/Tacoma Intl

Tue 4/22

2:15 pm-11:40 pm

1 stop19h 25m

$661

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 3/17

12:25 am-2:53 pm

2 stops52h 28m

Seattle/Tacoma Intl

Tue 4/22

2:15 pm-11:40 pm

1 stop19h 25m

$741

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 4/10

5:50 pm-4:10 pm

1 stop36h 20m

Seattle/Tacoma Intl

Tue 4/22

1:15 am-12:00 pm

1 stop20h 45m

$796

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 3/31

2:40 am-7:30 pm

1 stop30h 50m

Seattle/Tacoma Intl

Tue 4/29

1:10 am-12:10 pm

1 stop21h 00m

$830

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 3/20

11:15 pm-7:10 pm

1 stop33h 55m

Seattle/Tacoma Intl

Thu 3/27

4:45 pm-4:20 pm

1 stop33h 35m

$845

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 3/13

11:50 am-7:10 pm

1 stop21h 20m

Seattle/Tacoma Intl

Tue 4/22

1:30 am-10:25 am

1 stop18h 55m

$849

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 5/3

11:30 pm-10:40 am

1 stop25h 10m

Seattle/Tacoma Intl

Tue 5/13

12:50 pm-11:40 pm

1 stop20h 50m

$852

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 3/13

3:20 pm-2:40 pm

1 stop37h 20m

Seattle/Tacoma Intl

Wed 4/23

12:50 pm-9:55 pm

1 stop19h 05m

$870

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 3/19

1:00 am-2:40 pm

1 stop27h 40m

Seattle/Tacoma Intl

Thu 3/27

11:35 am-9:30 pm

1 stop19h 55m

$870

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 57 results
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Best time to book a flight from Thailand to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Thailand 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 Thailand to Washington

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

What is the cheapest month to book a flight from Thailand to State of Washington?

Currently, January is the cheapest month in which you can book a flight from Thailand to State of Washington (average of $238). Flying from Thailand to State of Washington in July is currently the most expensive (average of $411). 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 TH to WA?

Find hourly flight availability from Thailand to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Thailand to State of Washington as you normally would.

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated February 20, 2025.
To help decide which airline to fly from Thailand to Washington, see what other customers have to say about STARLUX Airlines, EVA Air and Korean Air. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Boarding

9.1

Overall

9.1

Comfort

9.0

Food

9.0

Crew

9.3

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

STARLUX Airlines
9.1
Wonderful
140 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Boarding

9.1

Overall

9.1

Comfort

9.0

Food

9.0

Crew

9.3

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

EVA Air
8.4
Very good
1,200 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Boarding

9.1

Overall

9.1

Comfort

9.0

Food

9.0

Crew

9.3

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Korean Air
8.4
Very good
1,037 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Boarding

9.1

Overall

9.1

Comfort

9.0

Food

9.0

Crew

9.3

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

ANA
8.4
Very good
842 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Boarding

9.1

Overall

9.1

Comfort

9.0

Food

9.0

Crew

9.3

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Japan Airlines
8.3
Very good
1,440 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Boarding

9.1

Overall

9.1

Comfort

9.0

Food

9.0

Crew

9.3

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Related info for your journey

Find useful and relevant information for your journey from Thailand to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Thailand to State of Washington one-way?

    To fly one-way, consider booking your trip with STARLUX Airlines, which is currently one of the cheapest options available, starting at $497. China Airlines flights start at $509 while deals on Singapore Airlines start at $517 one-way.

  • Can I find deals for flights from Thailand to Washington that include hotel bookings?

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

  • How can I find direct flights from Thailand to Washington?

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

  • Can I find deals for business class flights from Thailand to Washington?

    Yes. Cheapflights offers flight deals from Thailand to Washington 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 Thailand to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Thailand to State of Washington (average of $238). Flying from Thailand to State of Washington in July is currently the most expensive (average of $411). 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 Thailand to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Thailand to Washington

Discover the top 10 airlines that operate flights from Thailand to Washington. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$548Average$637FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$622Average$822FlexibilityNo cancel feeOn-time76%
EVA AirCheapest$788Average$1,073FlexibilityNo cancel feeOn-time74%
China AirlinesCheapest$801Average$874FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$802Average$1,003FlexibilityNo cancel feeOn-time81%
ANACheapest$830Average$1,090FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$850Average$960FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$922Average$1,038FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$937Average$1,009FlexibilityNo cancel feeOn-time71%
DeltaCheapest$938Average$982FlexibilityNo cancel feeOn-timeN/A
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