HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$398+ 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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Thailand to Washington 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.

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 April 2, 2025.

Round-trip from

$630
(oojo)

One-way from

$398
(Kiwi.com)

Popular in

January

Cheapest in

November

Average price

$926
From Thailand to Washington
Search Deals
One-way flight from Thailand to Washington
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 2, 2025.

This oojo deal was found by Cheapflights users on 4/1. 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.
Tue 9/1611:20 pmBKK - SEA
1 stop33h 55mPhilippine Airlines
Wed 10/811:35 pmSEA - BKK
1 stop22h 40mPhilippine Airlines
Deal found 4/1$630
This StudentUniverse deal was found by Cheapflights users on 3/30. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2011:15 pmCNX - SEA
1 stop25h 25mKorean Air
Wed 7/91:20 pmSEA - CNX
1 stop18h 35mKorean Air
Deal found 3/30$787
This Gotogate deal was found by Cheapflights users on 4/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/312:40 amBKK - SEA
1 stop30h 50mChina Airlines
Thu 8/281:40 amSEA - BKK
1 stop33h 45mChina Airlines
Deal found 4/1$787
This oojo deal was found by Cheapflights users on 4/1. 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.
Fri 6/611:35 amCNX - SEA
1 stop21h 55mEVA Air
Mon 9/81:30 amSEA - CNX
1 stop18h 55mEVA Air
Deal found 4/1$817
This oojo deal was found by Cheapflights users on 4/1. 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 9/173:10 pmBKK - SEA
1 stop18h 20mEVA Air
Tue 10/71:30 amSEA - BKK
1 stop18h 55mEVA Air
Deal found 4/1$817
This Delta deal was found by Cheapflights users on 3/31. 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.
Sun 5/2511:15 pmCNX - SEA
1 stop28h 20mDelta
Mon 6/3012:55 pmSEA - CNX
1 stop19h 00mDelta
Deal found 3/31$826
This Delta deal was found by Cheapflights users on 3/31. 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.
Sat 5/312:35 amBKK - SEA
1 stop25h 05mDelta
Sun 6/2912:55 pmSEA - BKK
1 stop22h 10mDelta
Deal found 3/31$826
This FlightHub deal was found by Cheapflights users on 4/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1412:45 amCNX - SEA
1 stop25h 45mAsiana Airlines
Thu 7/102:30 pmSEA - CNX
1 stop19h 10mAsiana Airlines
Deal found 4/1$856
This Ovago deal was found by Cheapflights users on 3/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1311:20 amCNX - SEA
1 stop22h 10mChina Airlines
Thu 7/101:40 amSEA - CNX
1 stop18h 40mChina Airlines
Deal found 3/30$861
This China Airlines deal was found by Cheapflights users on 4/1. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/152:40 amBKK - SEA
1 stop30h 40mMultiple Airlines
Sat 11/85:40 pmSEA - BKK
2 stops25h 10mMultiple Airlines
Deal found 4/1$897
This KAYAK deal was found by Cheapflights users on 3/31. 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.
Mon 8/252:35 amBKK - SEA
1 stop22h 15mKorean Air
Mon 9/2912:50 pmSEA - BKK
1 stop22h 15mKorean Air
Deal found 3/31$902
This Asiana Airlines deal was found by Cheapflights users on 3/31. 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 5/261:20 amBKK - SEA
1 stop25h 10mAsiana Airlines
Wed 6/252:15 pmSEA - BKK
1 stop30h 40mAsiana Airlines
Deal found 3/31$914

Cheapflights Fare Finder

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 April 2, 2025.
Use the filters below to find and compare flights from Thailand to Washington that are best for you.

Fly from

Thailand

Fly to

Washington

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 9/16

11:20 pm-7:15 pm

1 stop33h 55m

Seattle/Tacoma Intl

Wed 10/8

11:35 pm-12:15 pm

1 stop22h 40m

$630

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 5/12

2:40 am-7:30 pm

1 stop30h 50m

Seattle/Tacoma Intl

Mon 5/19

1:10 am-1:25 am

1 stop34h 15m

$778

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 5/20

11:15 pm-10:40 am

1 stop25h 25m

Seattle/Tacoma Intl

Wed 7/9

1:20 pm-9:55 pm

1 stop18h 35m

$787

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Fri 6/6

11:35 am-7:30 pm

1 stop21h 55m

Seattle/Tacoma Intl

Mon 9/8

1:30 am-10:25 am

1 stop18h 55m

$817

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 9/17

3:10 pm-7:30 pm

1 stop18h 20m

Seattle/Tacoma Intl

Tue 10/7

1:30 am-10:25 am

1 stop18h 55m

$817

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sun 5/25

11:15 pm-1:35 pm

1 stop28h 20m

Seattle/Tacoma Intl

Tue 7/1

12:55 pm-9:55 pm

1 stop19h 00m

$826

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 5/31

2:35 am-1:40 pm

1 stop25h 05m

Seattle/Tacoma Intl

Sun 6/29

12:55 pm-1:05 am

1 stop22h 10m

$826

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 5/14

12:45 am-12:30 pm

1 stop25h 45m

Seattle/Tacoma Intl

Thu 7/10

2:30 pm-11:40 pm

1 stop19h 10m

$856

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 5/13

11:20 am-7:30 pm

1 stop22h 10m

Seattle/Tacoma Intl

Mon 7/7

1:40 am-10:20 am

1 stop18h 40m

$861

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 4/30

1:10 pm-4:10 pm

1 stop17h 00m

Seattle/Tacoma Intl

Tue 5/6

1:15 am-12:00 pm

1 stop20h 45m

$896

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 60 results
1
2
3
...
6

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.

Cheapflights Insights

Everything you need to know about your flight from Thailand to Washington

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 April 2, 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 April 2, 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
146 reviews

Food

8.9

Entertainment

9.0

Overall

9.1

Boarding

9.0

Comfort

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
146 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Food

8.9

Entertainment

9.0

Overall

9.1

Boarding

9.0

Comfort

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
1,170 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Food

8.9

Entertainment

9.0

Overall

9.1

Boarding

9.0

Comfort

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
1,051 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Food

8.9

Entertainment

9.0

Overall

9.1

Boarding

9.0

Comfort

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
146 reviews

Food

8.9

Entertainment

9.0

Overall

9.1

Boarding

9.0

Comfort

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
8.3
Very good
830 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Food

8.9

Entertainment

9.0

Overall

9.1

Boarding

9.0

Comfort

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 Philippine Airlines, which is currently one of the cheapest options available, starting at $443. China Airlines flights start at $469 while deals on Singapore Airlines start at $475 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

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.

Alternative routes for Thailand to Washington

See prices for flight routes from nearby airports that may be better suited for you.
New Delhi to Newark flights
Mumbai to John F Kennedy Intl flights
New Delhi to John F Kennedy Intl flights
Haneda to Los Angeles flights
Hyderabad to Dallas/Fort Worth flights
Incheon Intl to John F Kennedy Intl flights
Mumbai to Newark flights
Mumbai to San Francisco flights
Manila to Los Angeles flights
Narita to Los Angeles flights
Incheon Intl to Los Angeles flights
New Delhi to San Francisco flights
Haneda to Seattle flights
Taiwan Taoyuan Intl to Seattle flights
Haneda to Honolulu flights
Narita to Seattle flights
Haneda to John F Kennedy Intl flights
Taiwan Taoyuan Intl to Los Angeles flights
Haneda to Newark flights
New Delhi to LaGuardia flights
Incheon Intl to Newark flights
Narita to Newark flights
Bangalore to San Francisco flights
Narita to Honolulu flights
Manila to San Francisco flights
Incheon Intl to Honolulu flights
Incheon Intl to LaGuardia flights
Incheon Intl to Seattle flights
New Delhi to O'Hare Intl flights
Ahmedabad to John F Kennedy Intl flights
Haneda to San Francisco flights
Taiwan Taoyuan Intl to San Francisco flights
Incheon Intl to Dallas/Fort Worth flights
Singapore to John F Kennedy Intl flights
Narita to John F Kennedy Intl flights
Hong Kong to San Francisco flights
Hyderabad to John F Kennedy Intl flights
Taiwan Taoyuan Intl to John F Kennedy Intl flights
Singapore to Newark flights
Mumbai to Los Angeles flights
Mumbai to LaGuardia flights
Suvarnabhumi to John F Kennedy Intl flights
Chennai to Atlanta flights
Suvarnabhumi to Los Angeles flights
Ahmedabad to Newark flights
Hyderabad to Newark flights
Manila to John F Kennedy Intl flights
Suvarnabhumi to Atlanta flights
Incheon Intl to San Francisco flights
Hyderabad to Dulles Intl flights

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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$551Average$640FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$622Average$811FlexibilityNo cancel feeOn-time76%
EVA AirCheapest$788Average$1,059FlexibilityNo cancel feeOn-time74%
STARLUX AirlinesCheapest$796Average$1,003FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$801Average$872FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$802Average$940FlexibilityNo cancel feeOn-time81%
DeltaCheapest$829Average$986FlexibilityNo cancel feeOn-timeN/A
ANACheapest$830Average$1,096FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$846Average$960FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$922Average$1,038FlexibilityNo 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.