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$419+ 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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 September 15, 2025.

Round-trip from

$651
(oojo)

One-way from

$419
(oojo)

Popular in

July

Cheapest in

November

Average price

$910
From Thailand to Washington
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One-way flight from Thailand to Washington
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 15, 2025.

This oojo deal was found by Cheapflights users on 9/13. 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 stop28h 05mPhilippine Airlines
Deal found 9/13$651
This Trip.com deal was found by Cheapflights users on 9/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/161:20 pmBKK - SEA
1 stop20h 20mPhilippine Airlines
Sun 11/239:30 pmSEA - BKK
1 stop23h 35mPhilippine Airlines
Deal found 9/13$656
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2411:30 pmBKK - SEA
1 stop27h 00mMultiple Airlines
Thu 10/3012:10 amSEA - BKK
1 stop34h 35mMultiple Airlines
Deal found 9/14$658
This oojo deal was found by Cheapflights users on 9/13. 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.
Thu 10/96:40 pmBKK - SEA
1 stop38h 35mPhilippine Airlines
Wed 11/129:30 pmSEA - BKK
1 stop29h 20mPhilippine Airlines
Deal found 9/13$659
This oojo deal was found by Cheapflights users on 9/14. 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.
Thu 9/186:40 pmBKK - SEA
1 stop38h 35mPhilippine Airlines
Wed 10/811:35 pmSEA - BKK
1 stop28h 05mPhilippine Airlines
Deal found 9/14$661
This oojo deal was found by Cheapflights users on 9/14. 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 9/206:40 pmBKK - SEA
1 stop38h 35mPhilippine Airlines
Sun 10/2610:30 pmSEA - BKK
1 stop34h 15mPhilippine Airlines
Deal found 9/14$673
This oojo deal was found by Cheapflights users on 9/14. 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 10/2511:20 pmBKK - SEA
1 stop34h 20mPhilippine Airlines
Fri 11/79:30 pmSEA - BKK
1 stop34h 15mPhilippine Airlines
Deal found 9/14$675
This FlightHub deal was found by Cheapflights users on 9/15. 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 11/191:20 pmBKK - SEA
1 stop20h 15mPhilippine Airlines
Fri 12/59:30 pmSEA - BKK
1 stop34h 15mPhilippine Airlines
Deal found 9/15$679
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/111:20 pmBKK - SEA
1 stop20h 20mPhilippine Airlines
Wed 12/319:30 pmSEA - BKK
1 stop34h 15mPhilippine Airlines
Deal found 9/14$684
This oojo deal was found by Cheapflights users on 9/13. 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 12/136:45 pmBKK - SEA
1 stop38h 55mPhilippine Airlines
Fri 1/29:30 pmSEA - BKK
1 stop23h 35mPhilippine Airlines
Deal found 9/13$686
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/71:20 pmBKK - SEA
1 stop20h 20mPhilippine Airlines
Fri 11/219:30 pmSEA - BKK
1 stop34h 15mPhilippine Airlines
Deal found 9/15$687
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:50 pmCNX - SEA
2 stops34h 05mMultiple Airlines
Tue 11/412:10 amSEA - CNX
2 stops26h 40mMultiple Airlines
Deal found 9/14$742

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 September 15, 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 1/20

6:45 pm-6:40 pm

1 stop38h 55m

Seattle/Tacoma Intl

Sun 3/29

11:55 pm-12:05 pm

1 stop22h 10m

$712

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 1/20

6:45 pm-6:40 pm

1 stop38h 55m

Seattle/Tacoma Intl

Wed 4/1

11:55 pm-12:05 pm

1 stop22h 10m

$712

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 11/2

1:20 pm-7:40 pm

1 stop20h 20m

Seattle/Tacoma Intl

Wed 3/11

10:30 pm-12:05 pm

1 stop23h 35m

$713

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 10/28

11:35 pm-7:40 pm

1 stop34h 05m

Seattle/Tacoma Intl

Sun 3/15

10:30 pm-5:50 pm

1 stop29h 20m

$713

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 11/5

1:20 pm-6:35 pm

1 stop20h 15m

Seattle/Tacoma Intl

Sun 11/23

9:30 pm-12:05 pm

1 stop23h 35m

$720

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 11/6

11:35 pm-6:40 pm

1 stop34h 05m

Seattle/Tacoma Intl

Sun 11/23

9:30 pm-5:50 pm

1 stop29h 20m

$730

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 11/24

11:35 pm-6:40 pm

1 stop34h 05m

Seattle/Tacoma Intl

Tue 1/13

9:30 pm-10:45 pm

1 stop34h 15m

$733

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 10/29

6:50 pm-2:55 pm

2 stops34h 05m

Seattle/Tacoma Intl

Tue 11/4

12:10 am-5:50 pm

2 stops26h 40m

$742

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 10/25

1:20 pm-7:20 pm

1 stop20h 00m

Seattle/Tacoma Intl

Thu 11/6

12:10 am-9:50 am

1 stop18h 40m

$797

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 10/25

10:50 am-7:20 pm

1 stop22h 30m

Seattle/Tacoma Intl

Mon 11/3

12:10 am-9:50 am

1 stop18h 40m

$797

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 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.

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 June is currently the most expensive (average of $387). 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 September 15, 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.

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 September 15, 2025.
Get a feel of what it's like to fly with STARLUX Airlines, EVA Air, and Korean Air from Thailand to Washington by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.9
Very good
211 reviews

Comfort

8.9

Overall

8.9

Food

8.8

Boarding

9.0

Crew

9.2

Entertainment

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
8.9
Very good
211 reviews
STARLUX Airlines
8.9
Very good
211 reviews

Comfort

8.9

Overall

8.9

Food

8.8

Boarding

9.0

Crew

9.2

Entertainment

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,236 reviews
STARLUX Airlines
8.9
Very good
211 reviews

Comfort

8.9

Overall

8.9

Food

8.8

Boarding

9.0

Crew

9.2

Entertainment

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,139 reviews
STARLUX Airlines
8.9
Very good
211 reviews

Comfort

8.9

Overall

8.9

Food

8.8

Boarding

9.0

Crew

9.2

Entertainment

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Delta
8.0
Very good
7,954 reviews
STARLUX Airlines
8.9
Very good
211 reviews

Comfort

8.9

Overall

8.9

Food

8.8

Boarding

9.0

Crew

9.2

Entertainment

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Philippine Airlines
7.2
Good
911 reviews
STARLUX Airlines
8.9
Very good
211 reviews

Comfort

8.9

Overall

8.9

Food

8.8

Boarding

9.0

Crew

9.2

Entertainment

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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.

  • How long is the flight from Thailand to State of Washington?

    Airlines like Philippine Airlines, STARLUX Airlines, and Delta fly from Thailand to State of Washington in about 20h 04m. The time it takes to get you to your destination can typically vary by up to 18h 51m. Thailand and State of Washington are separated by a distance of 7525 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $436. Air Canada flights start at $472 while deals on China Airlines start at $494 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 June is currently the most expensive (average of $387). 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 9 airlines flying from Thailand to Washington

Discover the top 9 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$553Average$650FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$622Average$745FlexibilityNo cancel feeOn-time76%
STARLUX AirlinesCheapest$705Average$828FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$781Average$856FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$801Average$899FlexibilityNo cancel feeOn-time81%
DeltaCheapest$829Average$954FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$831Average$1,016FlexibilityNo cancel feeOn-time74%
ANACheapest$867Average$1,067FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$922Average$1,041FlexibilityNo cancel feeOn-time79%

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