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Washington, D.C.

$522+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Cheap 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 February 12, 2026.

This EaseMyTrip deal was found by Cheapflights users on 2/10. 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.
Wed 2/1110:10 am
BKK
-
IAD
2 stops45h 10m
IndiGo
Mon 2/239:15 pm
IAD
-
BKK
2 stops35h 50m
IndiGo
Deal found 2/10$890
This Gotogate deal was found by Cheapflights users on 2/12. 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 3/97:30 pm
BKK
-
IAD
1 stop35h 00m
Multiple Airlines
Mon 5/43:10 pm
IAD
-
BKK
1 stop28h 05m
Multiple Airlines
Deal found 2/12$904
This CheapOair deal was found by Cheapflights users on 2/12. 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.
Thu 3/57:30 pm
BKK
-
IAD
1 stop35h 00m
Multiple Airlines
Mon 5/43:10 pm
IAD
-
BKK
1 stop28h 05m
Multiple Airlines
Deal found 2/12$928
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/271:40 pm
DMK
-
IAD
2 stops55h 05m
Multiple Airlines
Mon 8/31:20 pm
IAD
-
DMK
1 stop39h 30m
Multiple Airlines
Deal found 2/9$932
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/261:40 pm
DMK
-
IAD
2 stops55h 05m
Multiple Airlines
Mon 8/31:20 pm
IAD
-
DMK
1 stop39h 30m
Multiple Airlines
Deal found 2/9$933
This SmartFares deal was found by Cheapflights users on 2/8. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:15 pm
BKK
-
DCA
2 stops35h 44m
Multiple Airlines
Tue 5/129:59 am
DCA
-
BKK
2 stops37h 26m
Multiple Airlines
Deal found 2/8$986
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1910:50 pm
DMK
-
IAD
2 stops45h 55m
Multiple Airlines
Wed 9/161:20 pm
IAD
-
DMK
1 stop39h 10m
Multiple Airlines
Deal found 2/8$999
This KAYAK deal was found by Cheapflights users on 2/8. 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.
Wed 3/1112:45 pm
BKK
-
DCA
2 stops42h 20m
Multiple Airlines
Wed 5/139:59 am
DCA
-
BKK
2 stops38h 11m
Multiple Airlines
Deal found 2/8$1,002
This EaseMyTrip deal was found by Cheapflights users on 2/9. 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 8/254:45 pm
BKK
-
DCA
2 stops38h 15m
Multiple Airlines
Mon 9/79:59 am
DCA
-
BKK
2 stops38h 21m
Multiple Airlines
Deal found 2/9$1,005
This SmartFares deal was found by Cheapflights users on 2/9. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:35 am
BKK
-
DCA
2 stops29h 31m
Multiple Airlines
Wed 7/296:59 pm
DCA
-
BKK
2 stops29h 21m
Multiple Airlines
Deal found 2/9$1,010
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2410:50 am
BKK
-
IAD
2 stops33h 55m
Multiple Airlines
Mon 8/31:20 pm
IAD
-
BKK
1 stop39h 40m
Multiple Airlines
Deal found 2/9$1,011
This oojo deal was found by Cheapflights users on 2/11. 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.
Sun 5/1010:45 pm
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Sun 9/131:20 pm
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Deal found 2/11$1,012

Find 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 February 12, 2026.

Round-trip from

$932
(Kiwi.com)

One-way from

$522
(Kiwi.com)

Popular in

August

Cheapest in

October

Average price

$1,062
From Thailand to Washington, D.C. (WAS)
Search Deals
One-way flight from Thailand to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 12, 2026.
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.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Mon 4/27

1:40 pm-9:45 am

2 stops55h 05m

Washington, D.C. Dulles Intl

Mon 8/3

1:20 pm-3:50 pm

1 stop39h 30m

$932

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Sun 4/26

1:40 pm-9:45 am

2 stops55h 05m

Washington, D.C. Dulles Intl

Mon 8/3

1:20 pm-3:50 pm

1 stop39h 30m

$933

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 3/5

5:55 pm-6:30 pm

2 stops36h 35m

Washington, D.C. Dulles Intl

Mon 5/4

3:10 pm-11:50 am

1 stop33h 40m

$938

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 3/9

5:55 pm-7:30 pm

2 stops36h 35m

Washington, D.C. Dulles Intl

Mon 5/4

3:10 pm-6:10 pm

1 stop40h 00m

$939

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Sun 4/19

10:50 pm-9:45 am

2 stops45h 55m

Washington, D.C. Dulles Intl

Wed 9/16

1:20 pm-3:30 pm

1 stop39h 10m

$999

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 5/26

1:35 am-8:06 pm

2 stops29h 31m

Washington, D.C. Reagan-National

Wed 7/29

6:59 pm-11:20 am

2 stops29h 21m

$1,010

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 5/10

10:45 pm-10:50 am

1 stop23h 05m

Washington, D.C. Dulles Intl

Sun 9/13

1:20 pm-9:10 pm

1 stop44h 50m

$1,012

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Mon 6/8

4:45 pm-6:28 am

2 stops24h 43m

Baltimore/Washington

Wed 7/15

7:35 pm-11:20 am

2 stops28h 45m

$1,013

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 3/25

2:15 am-8:00 pm

2 stops28h 45m

Washington, D.C. Reagan-National

Mon 4/6

6:41 pm-10:55 am

2 stops29h 14m

$1,021

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 3/10

4:55 pm-8:51 am

3 stops26h 56m

Washington, D.C. Reagan-National

Tue 5/12

11:55 am-9:35 am

3 stops34h 40m

$1,064

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

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, June is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of $934). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of $1,137). 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 February 12, 2026.

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 in the evening, which can drop the price by up to 45% versus a flight at noon.

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 March 30, 2025.

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 February 12, 2026.
Read through reviews of airlines operating flights from Thailand to Washington, D.C., such as ANA, Delta, and Qatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
1,090 reviews

Overall

8.4

Crew

8.7

Boarding

8.6

Entertainment

7.9

Food

7.8

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!
ANA
8.4
Very good
1,090 reviews
ANA
8.4
Very good
1,090 reviews

Overall

8.4

Crew

8.7

Boarding

8.6

Entertainment

7.9

Food

7.8

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!
Delta
7.9
Good
8,178 reviews
ANA
8.4
Very good
1,090 reviews

Overall

8.4

Crew

8.7

Boarding

8.6

Entertainment

7.9

Food

7.8

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!
Qatar Airways
7.4
Good
3,731 reviews
ANA
8.4
Very good
1,090 reviews

Overall

8.4

Crew

8.7

Boarding

8.6

Entertainment

7.9

Food

7.8

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!

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 PREMIA, United Airlines, and Delta can get you from Thailand to Washington, D.C. in just under 23h 05m. Your travel time can differ by up to 12h 45m. 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 cheapest airlines to fly from Thailand to Washington, D.C. one-way?

    To fly one-way, consider booking your trip with IndiGo, which is currently one of the cheapest options available, starting at $471. SAUDIA flights start at $484 while deals on Turkish Airlines start at $539 one-way.

  • 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 - Washington, D.C. Reagan-National and Bangkok Suvarnabhumi - Baltimore/Washington.

  • 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, June is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of $934). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of $1,137). 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
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Laurel
Linthicum Heights
Rockville
Upper Marlboro
Manassas
Bowie
Largo
McLean
Clinton
Towson

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Thailand to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Hyderabad to Dulles Intl flights
Hyderabad to Reagan-National flights
Mumbai to Dulles Intl flights
New Delhi to Dulles Intl flights
Incheon Intl to Dulles Intl flights
Ahmedabad to Dulles Intl flights
Chennai to Dulles Intl flights
Suvarnabhumi to Dulles Intl flights
Mumbai to Reagan-National flights
New Delhi to Reagan-National flights
Bangalore to Dulles Intl flights
Haneda to Dulles Intl flights
Chennai to Reagan-National flights
Bangalore to Reagan-National flights
Lahore to Dulles Intl flights
Nagpur to Dulles Intl flights
Ahmedabad to Reagan-National flights
Karachi to Dulles Intl flights
Suvarnabhumi to Reagan-National flights
Taiwan Taoyuan Intl to Dulles Intl flights
Narita to Dulles Intl flights
Incheon Intl to Reagan-National flights
Taiwan Taoyuan Intl to Reagan-National flights
Colombo to Dulles Intl flights
Okinawa to Dulles Intl flights
Kuala Lumpur Intl to Reagan-National flights
Islamabad to Dulles Intl flights
Haneda to Reagan-National flights
Kolkata to Dulles Intl flights
Manila to Dulles Intl flights
Narita to Reagan-National flights
Dhaka to Dulles Intl flights
Kuala Lumpur Intl to Dulles Intl flights
Cochin to Dulles Intl flights
Capital to Dulles Intl flights
Ho Chi Minh City to Dulles Intl flights
Manila to Reagan-National flights
Hongqiao Intl to Reagan-National flights
Hongqiao Intl to Dulles Intl flights
Hanoi to Dulles Intl flights
Tbilisi to Dulles Intl flights
Dhaka to Reagan-National flights
Singapore to Dulles Intl flights

Top 4 airlines flying from Thailand to Washington, D.C.

Discover the top 4 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 February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,038Average$1,113FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$1,065Average$1,173FlexibilityNo cancel feeOn-time81%
ANACheapest$1,109Average$1,340FlexibilityNo cancel feeOn-time80%
Qatar AirwaysCheapest$1,134Average$1,172FlexibilityNo cancel feeOn-time68%

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