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$408+ 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 3/16. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
Dec 1 — Dec 81
Mon 12/1
Mon 12/8
1 adult, Economy
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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 November 1, 2025.

This Gotogate deal was found by Cheapflights users on 10/31. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/34:20 pmBKK - SEA
1 stop30h 40mHainan Airlines
Tue 11/1810:00 amSEA - BKK
1 stop22h 25mHainan Airlines
Deal found 10/31$628
This oojo deal was found by Cheapflights users on 11/1. 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.
Sat 12/1311:50 pmBKK - SEA
1 stop33h 50mPhilippine Airlines
Thu 1/19:30 pmSEA - BKK
1 stop34h 30mPhilippine Airlines
Deal found 11/1$661
This Philippine Airlines deal was found by Cheapflights users on 10/30. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/211:20 pmBKK - SEA
1 stop20h 20mPhilippine Airlines
Thu 1/89:30 pmSEA - BKK
1 stop23h 30mPhilippine Airlines
Deal found 10/30$703
This Philippine Airlines deal was found by Cheapflights users on 10/30. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2011:50 pmBKK - SEA
1 stop33h 50mPhilippine Airlines
Thu 1/89:30 pmSEA - BKK
1 stop23h 30mPhilippine Airlines
Deal found 10/30$713
This lastminute.com deal was found by Cheapflights users on 11/1. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/211:50 amCNX - SEA
1 stop21h 20mEVA Air
Sat 11/1511:30 pmSEA - CNX
1 stop20h 05mEVA Air
Deal found 11/1$750
This Orbitz deal was found by Cheapflights users on 10/31. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/141:20 pmBKK - PDX
2 stops35h 29mMultiple Airlines
Wed 12/35:50 pmPDX - BKK
2 stops38h 10mMultiple Airlines
Deal found 10/31$770
This FlightHub deal was found by Cheapflights users on 10/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1912:45 pmBKK - SEA
1 stop20h 25mEVA Air
Thu 1/812:10 amSEA - BKK
1 stop21h 25mEVA Air
Deal found 10/30$771
This FlightHub deal was found by Cheapflights users on 11/1. 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 12/102:40 pmBKK - SEA
1 stop18h 30mEVA Air
Tue 12/2312:10 amSEA - BKK
1 stop34h 15mEVA Air
Deal found 11/1$772
This Expedia deal was found by Cheapflights users on 10/31. 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.
Thu 11/131:20 pmBKK - PDX
2 stops25h 17mMultiple Airlines
Wed 12/35:50 pmPDX - BKK
2 stops38h 10mMultiple Airlines
Deal found 10/31$789
This Gotogate deal was found by Cheapflights users on 10/31. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:15 amBKK - SEA
1 stop26h 01mAir Canada
Tue 11/188:00 pmSEA - BKK
2 stops35h 20mAir Canada
Deal found 10/31$796
This oojo deal was found by Cheapflights users on 10/31. 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.
Wed 12/32:15 amBKK - SEA
1 stop30h 55mEVA Air
Tue 12/1611:30 pmSEA - BKK
1 stop33h 10mEVA Air
Deal found 10/31$800
This Travelocity deal was found by Cheapflights users on 11/1. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1311:50 pmBKK - SEA
1 stop33h 50mMultiple Airlines
Thu 1/110:05 amSEA - BKK
2 stops41h 00mMultiple Airlines
Deal found 11/1$802

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 November 1, 2025.

Round-trip from

$639
(oojo)

One-way from

$408
(FlightHub)

Popular in

July

Cheapest in

February

Average price

$836
From Thailand to Washington
Search Deals
One-way flight from Thailand to Washington
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($93 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 1, 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

Sun 12/21

1:20 pm-6:40 pm

1 stop20h 20m

Seattle/Tacoma Intl

Thu 1/8

9:30 pm-12:00 pm

1 stop23h 30m

$703

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 1/28

1:20 pm-6:40 pm

1 stop20h 20m

Seattle/Tacoma Intl

Sun 6/14

11:55 pm-9:50 pm

1 stop31h 55m

$703

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 12/21

1:20 pm-6:40 pm

1 stop20h 20m

Seattle/Tacoma Intl

Fri 1/9

9:30 pm-5:50 pm

1 stop29h 20m

$703

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 3/25

1:20 pm-7:40 pm

1 stop20h 20m

Seattle/Tacoma Intl

Wed 4/15

11:55 pm-12:05 pm

1 stop22h 10m

$708

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 3/24

11:50 pm-7:40 pm

1 stop33h 50m

Seattle/Tacoma Intl

Sun 4/12

11:55 pm-4:45 pm

1 stop26h 50m

$708

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 3/25

11:50 pm-7:40 pm

1 stop33h 50m

Seattle/Tacoma Intl

Sun 3/29

11:55 pm-12:05 pm

1 stop22h 10m

$711

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 2/10

4:55 pm-4:29 pm

2 stops38h 34m

Seattle/Tacoma Intl

Tue 3/10

4:45 pm-5:10 am

1 stop22h 25m

$799

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 1/27

10:55 am-6:10 pm

1 stop22h 15m

Seattle/Tacoma Intl

Thu 6/11

1:10 am-1:25 am

1 stop34h 15m

$802

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 3/10

12:10 pm-6:30 pm

2 stops20h 20m

Seattle/Tacoma Intl

Mon 4/6

1:30 am-10:25 am

1 stop18h 55m

$825

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 3/10

4:55 pm-4:05 pm

1 stop37h 10m

Seattle/Tacoma Intl

Thu 4/9

1:15 am-4:20 pm

1 stop25h 05m

$836

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

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, April is the cheapest month in which you can book a flight from Thailand to State of Washington (average of $622). Flying from Thailand to State of Washington in July is currently the most expensive (average of $781). 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 November 1, 2025.

It’s optimal to fly from Thailand to State of Washington at noon. By choosing this option you can save up to 56% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Thailand to State of Washington?

Use this chart to determine the cheapest time to fly round-trip from Thailand to Washington. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Thailand to State of Washington flight should consider departing on Thursday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 1, 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
219 reviews

Comfort

8.9

Boarding

8.9

Crew

9.2

Food

8.7

Entertainment

8.8

Overall

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
STARLUX Airlines
8.9
Very good
219 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Comfort

8.9

Boarding

8.9

Crew

9.2

Food

8.7

Entertainment

8.8

Overall

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
EVA Air
8.4
Very good
1,267 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Comfort

8.9

Boarding

8.9

Crew

9.2

Food

8.7

Entertainment

8.8

Overall

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
Korean Air
8.4
Very good
1,157 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Comfort

8.9

Boarding

8.9

Crew

9.2

Food

8.7

Entertainment

8.8

Overall

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
Delta
7.9
Good
7,996 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Comfort

8.9

Boarding

8.9

Crew

9.2

Food

8.7

Entertainment

8.8

Overall

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
Philippine Airlines
7.3
Good
931 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Comfort

8.9

Boarding

8.9

Crew

9.2

Food

8.7

Entertainment

8.8

Overall

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!

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, EVA Air, and STARLUX Airlines fly from Thailand to State of Washington in about 20h 20m. The time it takes to get you to your destination can typically vary by up to 16h 50m. Thailand and State of Washington are separated by a distance of 7443 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 $412. Hainan Airlines flights start at $432 while deals on Air Canada start at $512 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, April is the cheapest month in which you can book a flight from Thailand to State of Washington (average of $622). Flying from Thailand to State of Washington in July is currently the most expensive (average of $781). 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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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 November 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$594Average$654FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$651Average$864FlexibilityNo cancel feeOn-time76%
STARLUX AirlinesCheapest$705Average$826FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$770Average$972FlexibilityNo cancel feeOn-time74%
ANACheapest$781Average$1,067FlexibilityNo cancel feeOn-time80%
China AirlinesCheapest$781Average$856FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$801Average$899FlexibilityNo cancel feeOn-time81%
DeltaCheapest$829Average$926FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$922Average$1,041FlexibilityNo cancel feeOn-time79%

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