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Washington, D.C.

$445+ Cheap flights from Thailand to Washington, D.C. (WAS)

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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Thailand to Washington, D.C.

Keep the following information in mind while searching for Thailand to Washington, D.C. flight deals. Data was last updated October 30, 2025.

Round-trip from

$898
(EaseMyTrip)

One-way from

$445
(Kiwi.com)

Popular in

August

Cheapest in

July

Average price

$1,072
From Thailand to Washington, D.C. (WAS)
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One-way flight from Thailand to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 4% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Thailand to Washington, D.C.

Cheapest flights from Thailand to Washington, D.C.
Explore the most affordable flight options available from Thailand to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:50 amBKK - IAD
2 stops44h 30mIndiGo
Wed 1/149:15 pmIAD - BKK
2 stops35h 50mIndiGo
Deal found 10/30$908
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.
Thu 12/181:30 amBKK - IAD
1 stop29h 00mAir China
Fri 1/910:00 pmIAD - BKK
1 stop32h 05mAir China
Deal found 10/30$922
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1210:50 amBKK - IAD
2 stops44h 30mIndiGo
Sat 1/31:30 pmIAD - BKK
2 stops42h 20mIndiGo
Deal found 10/30$930
This EaseMyTrip 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/31:30 amBKK - IAD
1 stop29h 00mAir China
Tue 11/1810:00 pmIAD - BKK
1 stop32h 05mAir China
Deal found 10/30$932
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:50 amBKK - IAD
2 stops44h 30mIndiGo
Sat 11/299:15 pmIAD - BKK
2 stops35h 50mIndiGo
Deal found 10/30$935
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/111:50 pmBKK - BWI
2 stops54h 26mMultiple Airlines
Fri 12/57:00 amBWI - BKK
2 stops52h 00mMultiple Airlines
Deal found 10/30$939
This CheapOair deal was found by Cheapflights users on 10/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:50 amBKK - IAD
2 stops44h 30mIndiGo
Thu 1/19:15 pmIAD - BKK
2 stops34h 35mIndiGo
Deal found 10/29$943
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:50 amBKK - IAD
2 stops44h 30mMultiple Airlines
Fri 1/98:05 pmIAD - BKK
1 stop29h 00mMultiple Airlines
Deal found 10/30$1,002
This EaseMyTrip deal was found by Cheapflights users on 10/29. 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.
Tue 11/410:50 amBKK - IAD
2 stops44h 30mIndiGo
Tue 11/181:30 pmIAD - BKK
2 stops43h 35mIndiGo
Deal found 10/29$1,006
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.
Tue 11/183:20 pmBKK - IAD
1 stop35h 25mSAUDIA
Sat 11/296:10 pmIAD - BKK
1 stop41h 20mSAUDIA
Deal found 10/30$1,015
This CheapOair deal was found by Cheapflights users on 10/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/192:55 amBKK - IAD
1 stop42h 10mEtihad Airways
Wed 1/142:35 pmIAD - BKK
1 stop20h 45mEtihad Airways
Deal found 10/29$1,023
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:10 amBKK - DCA
2 stops40h 20mUnited Airlines
Fri 1/92:00 pmDCA - BKK
3 stops33h 25mUnited Airlines
Deal found 10/30$1,043

Cheapflights Fare Finder

 
Customize your flight search to find flights from Thailand to Washington, D.C. 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 October 30, 2025.
Use the filters below to find and compare flights from Thailand to Washington, D.C. that are best for you.

Fly from

Thailand

Fly to

Washington, D.C.

Route

Depart

Return

Price

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 12/18

1:30 am-6:30 pm

1 stop29h 00m

Washington, D.C. Dulles Intl

Fri 1/9

10:00 pm-6:05 pm

1 stop32h 05m

$922

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sat 12/20

10:50 am-7:20 pm

2 stops44h 30m

Washington, D.C. Dulles Intl

Fri 1/9

8:05 pm-1:05 pm

1 stop29h 00m

$1,002

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 12/19

7:10 am-11:49 pm

2 stops28h 39m

Washington, D.C. Reagan-National

Thu 1/8

2:00 pm-11:25 am

3 stops33h 25m

$1,043

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 12/19

7:10 am-11:30 am

2 stops40h 20m

Washington, D.C. Reagan-National

Fri 1/9

2:00 pm-11:25 am

3 stops33h 25m

$1,043

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sat 1/24

4:55 pm-1:13 pm

3 stops32h 18m

Washington, D.C. Reagan-National

Sat 1/31

5:59 pm-11:25 am

2 stops29h 26m

$1,057

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 2/18

8:00 am-9:21 pm

2 stops25h 21m

Washington, D.C. Dulles Intl

Sun 2/22

9:45 am-6:30 am

2 stops32h 45m

$1,062

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Sat 1/24

7:30 pm-7:20 pm

3 stops35h 50m

Washington, D.C. Dulles Intl

Sat 1/31

2:35 pm-2:30 am

2 stops23h 55m

$1,087

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 3/19

10:55 am-5:49 am

2 stops29h 54m

Washington, D.C. Dulles Intl

Tue 5/12

7:01 pm-12:10 pm

2 stops30h 09m

$1,087

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sat 2/28

2:05 pm-5:55 am

2 stops27h 50m

Washington, D.C. Dulles Intl

Sat 5/16

7:15 pm-9:45 am

2 stops27h 30m

$1,104

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 2/16

9:30 pm-9:50 am

1 stop24h 20m

Washington, D.C. Dulles Intl

Sun 3/22

12:50 pm-11:20 pm

1 stop23h 30m

$1,113

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 60 results
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Best time to book a flight from Thailand to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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, D.C.

What is the cheapest month to book a flight from Thailand to Washington, D.C.?

Currently, March is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of $917). Flying from Thailand to Washington, D.C. in December is currently the most expensive (average of $1,084). 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 WAS?

Find hourly flight availability from Thailand to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

When flying from Thailand to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 19% versus a flight in the evening.

What is the cheapest day to fly from Thailand to Washington, D.C.?

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

Travelers seeking maximum savings on their Thailand to Washington, D.C. flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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, D.C.. Reviews last updated October 30, 2025.
Read through reviews of airlines operating flights from Thailand to Washington, D.C., such as Korean Air, Delta, and Qatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,155 reviews

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,155 reviews
Korean Air
8.4
Very good
1,155 reviews

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Delta
7.9
Good
7,998 reviews
Korean Air
8.4
Very good
1,155 reviews

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Qatar Airways
7.4
Good
3,661 reviews
Korean Air
8.4
Very good
1,155 reviews

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
United Airlines
7.4
Good
8,998 reviews
Korean Air
8.4
Very good
1,155 reviews

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Thailand to Washington, D.C.. 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 Washington, D.C.?

    Air China, United Airlines, and Air Canada can get you from Thailand to Washington, D.C. in just under 25h 21m. Your travel time can differ by up to 3h 39m. The distance from Thailand to Washington, D.C. is about 8792 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Thailand to Washington, D.C.?

    The most popular flight routes from Thailand to Washington, D.C. are Bangkok Suvarnabhumi - Washington, D.C. Dulles Intl, Bangkok Suvarnabhumi - Baltimore/Washington and Bangkok Suvarnabhumi - Washington, D.C. Reagan-National.

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

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

  • How can I find direct flights from Thailand to Washington, D.C.?

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

  • Can I find deals for business class flights from Thailand to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Thailand to Washington, D.C. 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 Washington, D.C.?

    Currently, March is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of $917). Flying from Thailand to Washington, D.C. in December is currently the most expensive (average of $1,084). 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Owings Mills
Linthicum Heights
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf
Bowie

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, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
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Singapore to Reagan-National flights
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Islamabad to Reagan-National flights
Dhaka to Dulles Intl flights
Hong Kong to Dulles Intl flights
Kansai Intl to Dulles Intl flights
Karachi to Reagan-National flights
Kansai Intl to Reagan-National flights
Lahore to Reagan-National flights
Yerevan to Dulles Intl flights
Ho Chi Minh City to Reagan-National flights
Baku to Reagan-National flights

Top 6 airlines flying from Thailand to Washington, D.C.

Discover the top 6 airlines that operate flights from Thailand to Washington, D.C.. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$992Average$1,107FlexibilityNo cancel feeOn-time69%
ANACheapest$1,011Average$1,316FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$1,033Average$1,169FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,143Average$1,196FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,371Average$1,545FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$1,401Average$1,520FlexibilityNo cancel feeOn-time71%

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