HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$474+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Thailand to Washington, D.C. with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 March 12, 2026.

This United Airlines deal was found by Cheapflights users on 3/7. 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.
Tue 10/69:35 am
BKK
-
IAD
2 stops45h 58m
United Airlines
Sun 11/110:10 pm
IAD
-
BKK
2 stops49h 15m
United Airlines
Deal found 3/7$798
This United Airlines deal was found by Cheapflights users on 3/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/199:35 am
BKK
-
IAD
1 stop41h 05m
United Airlines
Mon 10/198:15 am
IAD
-
BKK
2 stops28h 40m
United Airlines
Deal found 3/10$799
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Thu 8/279:35 am
BKK
-
IAD
2 stops61h 12m
United Airlines
Thu 9/106:15 am
IAD
-
BKK
2 stops30h 40m
United Airlines
Deal found 3/7$801
This United Airlines deal was found by Cheapflights users on 3/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:00 am
BKK
-
DCA
2 stops25h 53m
United Airlines
Fri 9/116:00 am
DCA
-
BKK
2 stops30h 55m
United Airlines
Deal found 3/10$808
This United Airlines deal was found by Cheapflights users on 3/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:00 am
BKK
-
IAD
2 stops26h 43m
United Airlines
Fri 9/116:15 am
IAD
-
BKK
2 stops30h 40m
United Airlines
Deal found 3/10$808
This United Airlines deal was found by Cheapflights users on 3/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/199:35 am
BKK
-
IAD
2 stops46h 36m
United Airlines
Tue 11/1710:05 am
IAD
-
BKK
2 stops37h 20m
United Airlines
Deal found 3/10$810
This United Airlines deal was found by Cheapflights users on 3/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/289:35 am
BKK
-
IAD
1 stop41h 15m
United Airlines
Wed 9/168:29 am
IAD
-
BKK
2 stops28h 26m
United Airlines
Deal found 3/10$812
This United Airlines deal was found by Cheapflights users on 3/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:35 am
BKK
-
IAD
2 stops45h 58m
United Airlines
Wed 11/46:50 pm
IAD
-
BKK
2 stops28h 35m
United Airlines
Deal found 3/10$814
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/44:55 pm
BKK
-
DCA
3 stops26h 24m
United Airlines
Tue 12/87:50 am
DCA
-
BKK
2 stops39h 35m
United Airlines
Deal found 3/8$819
This United Airlines deal was found by Cheapflights users on 3/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:00 am
BKK
-
DCA
2 stops25h 53m
United Airlines
Wed 9/166:00 am
DCA
-
BKK
2 stops30h 55m
United Airlines
Deal found 3/10$828
This China Airlines deal was found by Cheapflights users on 3/10. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:30 pm
BKK
-
DCA
2 stops37h 30m
Multiple Airlines
Fri 10/239:59 am
DCA
-
BKK
2 stops36h 51m
Multiple Airlines
Deal found 3/10$985
This SmartFares deal was found by Cheapflights users on 3/10. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/194:45 pm
BKK
-
DCA
2 stops38h 21m
Multiple Airlines
Mon 10/199:59 am
DCA
-
BKK
2 stops37h 56m
Multiple Airlines
Deal found 3/10$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 March 12, 2026.

Round-trip from

$799
(United Airlines)

One-way from

$474
(SmartFares)

Popular in

August

Cheapest in

October

Average price

$1,399
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. 1% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 12, 2026.
Use the filters below to find and compare flights from Thailand to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 8/27

7:00 am-9:08 pm

2 stops25h 08m

Washington, D.C. Dulles Intl

Thu 9/10

3:02 pm-9:35 am

3 stops31h 33m

$1,022

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 4/21

3:45 pm-6:50 pm

3 stops38h 05m

Washington, D.C. Reagan-National

Tue 4/28

5:59 pm-9:35 am

2 stops28h 36m

$1,038

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 4/22

9:40 pm-5:30 pm

2 stops30h 50m

Washington, D.C. Reagan-National

Wed 7/8

10:00 am-11:35 pm

2 stops26h 35m

$1,153

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 4/22

9:40 pm-5:30 pm

2 stops30h 50m

Washington, D.C. Reagan-National

Tue 7/7

9:00 am-1:05 am

2 stops29h 05m

$1,153

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 4/28

9:40 pm-11:55 pm

2 stops37h 15m

Washington, D.C. Dulles Intl

Mon 7/13

1:30 pm-1:05 am

1 stop24h 35m

$1,153

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 5/6

9:40 pm-12:15 am

2 stops37h 35m

Washington, D.C. Dulles Intl

Wed 5/13

8:05 am-9:45 pm

2 stops26h 40m

$1,153

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 8/27

9:40 pm-11:15 am

1 stop24h 35m

Washington, D.C. Dulles Intl

Thu 9/10

1:15 pm-11:35 pm

1 stop23h 20m

$1,163

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 4/2

9:15 am-8:45 am

1 stop34h 30m

Washington, D.C. Dulles Intl

Sat 4/18

8:20 pm-12:55 pm

1 stop29h 35m

$1,165

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 4/24

7:00 am-10:28 pm

2 stops26h 28m

Washington, D.C. Reagan-National

Fri 5/1

6:30 am-9:35 am

3 stops40h 05m

$1,170

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Wed 5/6

9:00 am-7:40 pm

2 stops45h 40m

Baltimore/Washington

Wed 5/13

9:30 pm-6:50 am

2 stops46h 20m

$1,174

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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, May is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of $956). 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 March 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 March 12, 2026.
Read through reviews of airlines operating flights from Thailand to Washington, D.C., such as ANA,Delta, andQatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
1,126 reviews

Crew

8.7

Overall

8.4

Food

7.8

Boarding

8.5

Comfort

8.2

Entertainment

8.0

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
1,126 reviews
ANA
8.4
Very good
1,126 reviews

Crew

8.7

Overall

8.4

Food

7.8

Boarding

8.5

Comfort

8.2

Entertainment

8.0

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
8,284 reviews
ANA
8.4
Very good
1,126 reviews

Crew

8.7

Overall

8.4

Food

7.8

Boarding

8.5

Comfort

8.2

Entertainment

8.0

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
3,740 reviews
ANA
8.4
Very good
1,126 reviews

Crew

8.7

Overall

8.4

Food

7.8

Boarding

8.5

Comfort

8.2

Entertainment

8.0

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.?

    United Airlines, Delta, and Qatar Airways can get you from Thailand to Washington, D.C. in just under 30h 50m. Your travel time can differ by up to 8h 49m. The distance from Thailand to Washington, D.C. is about 8797 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, May is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of $956). 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
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Linthicum Heights
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park

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.

Top 5 airlines flying from Thailand to Washington, D.C.

Discover the top 5 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 March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,040Average$1,137FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$1,065Average$1,172FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,078Average$1,295FlexibilityNo cancel feeOn-timeN/A
ANACheapest$1,109Average$1,340FlexibilityNo cancel feeOn-time80%
Qatar AirwaysCheapest$1,142Average$1,177FlexibilityNo cancel feeOn-time68%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.