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$431+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
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 julio 31, 2025.

Round-trip from

$604
(FlightHub)

One-way from

$431
(Philippine Airlines)

Popular in

January

Cheapest in

November

Average price

$1,114
From Thailand to Washington
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One-way flight from Thailand to Washington
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Highest demand for flights based on searches. 3% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 31, 2025.

This FlightHub deal was found by Cheapflights users on 7/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/82:35 amBKK - SEA
1 stop23h 55mMultiple Airlines
vie. 9/262:15 pmSEA - BKK
1 stop20h 50mMultiple Airlines
Deal found 7/31$604
This oojo deal was found by Cheapflights users on 7/31. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/96:40 pmBKK - SEA
1 stop38h 35mPhilippine Airlines
vie. 9/2611:35 pmSEA - BKK
1 stop22h 40mPhilippine Airlines
Deal found 7/31$630
This oojo deal was found by Cheapflights users on 7/31. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/91:10 pmBKK - SEA
1 stop17h 00mSTARLUX Airlines
jue. 9/251:15 amSEA - BKK
1 stop20h 45mSTARLUX Airlines
Deal found 7/31$701
This Trip.com deal was found by Cheapflights users on 7/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/255:20 pmCNX - SEA
1 stop36h 50mSTARLUX Airlines
dom. 10/51:15 amSEA - CNX
1 stop25h 05mSTARLUX Airlines
Deal found 7/31$734
This Expedia deal was found by Cheapflights users on 7/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/115:20 pmCNX - PDX
2 stops39h 50mMultiple Airlines
mar. 11/115:41 pmPDX - CNX
2 stops31h 14mMultiple Airlines
Deal found 7/31$815
This Expedia deal was found by Cheapflights users on 7/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/2510:10 amCNX - SEA
2 stops20h 00mMultiple Airlines
dom. 10/51:15 amSEA - CNX
1 stop25h 05mMultiple Airlines
Deal found 7/31$821
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/1311:15 pmCNX - SEA
1 stop28h 25mDelta
sáb. 9/2012:35 pmSEA - CNX
1 stop19h 20mDelta
Deal found 7/30$829
This Asiana Airlines deal was found by Cheapflights users on 7/30. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/2012:45 amCNX - SEA
1 stop26h 00mAsiana Airlines
mar. 9/92:15 pmSEA - CNX
1 stop19h 25mAsiana Airlines
Deal found 7/30$857
This oojo deal was found by Cheapflights users on 7/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/211:35 amCNX - SEA
1 stop21h 55mEVA Air
sáb. 10/1112:35 pmSEA - CNX
2 stops31h 50mEVA Air
Deal found 7/30$956
This Delta deal was found by Cheapflights users on 7/31. 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.
mié. 12/171:00 amBKK - PDX
2 stops33h 13mDelta
lun. 1/55:30 amPDX - BKK
2 stops28h 15mDelta
Deal found 7/31$970
This China Airlines deal was found by Cheapflights users on 7/31. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/2310:10 amCNX - SEA
2 stops23h 10mChina Airlines
dom. 10/51:10 amSEA - CNX
1 stop19h 10mChina Airlines
Deal found 7/31$1,021
This oojo deal was found by Cheapflights users on 7/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/51:35 amBKK - PDX
2 stops25h 53mEVA Air
lun. 10/68:50 pmPDX - BKK
2 stops24h 10mEVA Air
Deal found 7/30$1,021

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 julio 31, 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

lun. 9/8

2:35 am-12:30 pm

1 stop23h 55m

Seattle/Tacoma Intl

vie. 9/26

2:15 pm-1:05 am

1 stop20h 50m

$604

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

mar. 9/9

6:40 pm-7:15 pm

1 stop38h 35m

Seattle/Tacoma Intl

vie. 9/26

11:35 pm-12:15 pm

1 stop22h 40m

$630

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

mar. 9/9

1:10 pm-4:10 pm

1 stop17h 00m

Seattle/Tacoma Intl

jue. 9/25

1:15 am-12:00 pm

1 stop20h 45m

$701

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

jue. 9/25

5:20 pm-4:10 pm

1 stop36h 50m

Seattle/Tacoma Intl

dom. 10/5

1:15 am-4:20 pm

1 stop25h 05m

$734

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

jue. 9/11

5:20 pm-7:10 pm

2 stops39h 50m

Portland

mar. 11/11

5:41 pm-3:55 pm

2 stops31h 14m

$815

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

jue. 9/25

10:10 am-4:10 pm

2 stops20h 00m

Seattle/Tacoma Intl

dom. 10/5

1:15 am-4:20 pm

1 stop25h 05m

$821

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

sáb. 9/13

11:15 pm-1:40 pm

1 stop28h 25m

Seattle/Tacoma Intl

sáb. 9/20

12:35 pm-9:55 pm

1 stop19h 20m

$829

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

mié. 8/20

12:45 am-12:45 pm

1 stop26h 00m

Seattle/Tacoma Intl

sáb. 9/6

2:15 pm-11:40 pm

1 stop19h 25m

$857

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

jue. 10/2

11:35 am-7:30 pm

1 stop21h 55m

Seattle/Tacoma Intl

sáb. 10/11

12:35 pm-10:25 am

2 stops31h 50m

$956

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

mié. 12/17

1:00 am-7:13 pm

2 stops33h 13m

Portland

lun. 1/5

5:30 am-12:45 am

2 stops28h 15m

$970

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 51 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 $389). 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 julio 31, 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 julio 31, 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
9.0
Wonderful
199 reviews

Comfort

8.9

Boarding

9.0

Crew

9.3

Entertainment

8.9

Overall

9.0

Food

8.8

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
9.0
Wonderful
199 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Comfort

8.9

Boarding

9.0

Crew

9.3

Entertainment

8.9

Overall

9.0

Food

8.8

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
1,220 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Comfort

8.9

Boarding

9.0

Crew

9.3

Entertainment

8.9

Overall

9.0

Food

8.8

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
1,121 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Comfort

8.9

Boarding

9.0

Crew

9.3

Entertainment

8.9

Overall

9.0

Food

8.8

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.
China Airlines
8.3
Very good
754 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Comfort

8.9

Boarding

9.0

Crew

9.3

Entertainment

8.9

Overall

9.0

Food

8.8

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.
Asiana Airlines
8.2
Very good
468 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Comfort

8.9

Boarding

9.0

Crew

9.3

Entertainment

8.9

Overall

9.0

Food

8.8

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.

  • 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 $431. STARLUX Airlines flights start at $437 while deals on China Airlines start at $516 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 $389). 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$551Average$640FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$622Average$778FlexibilityNo cancel feeOn-time76%
STARLUX AirlinesCheapest$739Average$902FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$788Average$973FlexibilityNo cancel feeOn-time74%
China AirlinesCheapest$793Average$862FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$802Average$901FlexibilityNo cancel feeOn-time81%
DeltaCheapest$829Average$983FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$850Average$976FlexibilityNo cancel feeOn-time69%
ANACheapest$899Average$1,118FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$922Average$1,041FlexibilityNo cancel feeOn-time79%

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