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Cheap flights from Thailand to Washington, D.C. from ฿15,256

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Thailand to Washington, D.C.

Enter your travel dates to find the best prices.

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 10 March 2026.

Tue 6/1009:35
BKK
-
IAD
2 stops45h 58m
United Airlines
Sun 1/1122:10
IAD
-
BKK
2 stops49h 15m
United Airlines
Deal found 7/3฿25,522
Thu 27/809:35
BKK
-
IAD
2 stops61h 12m
United Airlines
Thu 10/906:15
IAD
-
BKK
2 stops30h 40m
United Airlines
Deal found 7/3฿25,618
Fri 28/807:00
BKK
-
DCA
2 stops25h 53m
United Airlines
Fri 11/906:00
DCA
-
BKK
2 stops30h 55m
United Airlines
Deal found 10/3฿25,842
Fri 28/807:00
BKK
-
IAD
2 stops26h 43m
United Airlines
Fri 11/906:15
IAD
-
BKK
2 stops30h 40m
United Airlines
Deal found 10/3฿25,842
Fri 28/809:35
BKK
-
IAD
1 stop41h 15m
United Airlines
Wed 16/908:29
IAD
-
BKK
2 stops28h 26m
United Airlines
Deal found 10/3฿25,970
Fri 3/707:00
BKK
-
IAD
2 stops35h 26m
United Airlines
Sat 25/714:35
IAD
-
BKK
2 stops46h 20m
United Airlines
Deal found 6/3฿26,034
Tue 6/1015:45
BKK
-
DCA
3 stops31h 38m
United Airlines
Mon 19/1006:00
DCA
-
BKK
2 stops30h 55m
United Airlines
Deal found 6/3฿26,098
Fri 4/1216:55
BKK
-
DCA
3 stops26h 24m
United Airlines
Tue 8/1207:50
DCA
-
BKK
2 stops39h 35m
United Airlines
Deal found 8/3฿26,194
Fri 9/1017:30
BKK
-
DCA
2 stops37h 30m
Multiple Airlines
Fri 23/1009:59
DCA
-
BKK
2 stops36h 51m
Multiple Airlines
Deal found 10/3฿31,503
Tue 6/1013:20
BKK
-
BWI
2 stops28h 01m
Multiple Airlines
Mon 19/1018:11
BWI
-
BKK
2 stops30h 59m
Multiple Airlines
Deal found 6/3฿31,919
Fri 28/816:45
BKK
-
DCA
2 stops38h 15m
Multiple Airlines
Wed 16/909:59
DCA
-
BKK
2 stops38h 21m
Multiple Airlines
Deal found 10/3฿32,367
Tue 21/416:45
BKK
-
DCA
2 stops38h 15m
Multiple Airlines
Tue 28/409:59
DCA
-
BKK
2 stops37h 26m
Multiple Airlines
Deal found 7/3฿32,463

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 10 March 2026.

Round-trip from

฿25,618

One-way from

฿15,256

Popular in

August

Cheapest in

October

Average price

฿44,744
United Airlines
  • United Airlines
  • 27/8-10/9
  • 4 total stops
  • 91h 52m total
  • Thailand to Washington, D.C.
Search Deals
Air China
  • Air China
  • 2/4
  • 1 total stop
  • 31h 25m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (฿17,236 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿32,114 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 17,341 searches. Data last updated 10 March 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 return flight

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 3/7

07:00-07:26

2 stops35h 26m

Washington, D.C. Dulles Intl

Sat 25/7

14:35-23:55

2 stops46h 20m

฿26,034

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sat 2/5

21:40-00:42

2 stops38h 02m

Washington, D.C. Dulles Intl

Mon 29/6

07:10-21:45

2 stops27h 35m

฿33,678

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 19/4

15:45-10:59

3 stops30h 14m

Washington, D.C. Reagan-National

Sun 26/4

11:55-09:35

3 stops34h 40m

฿33,838

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 27/8

07:00-19:21

2 stops23h 21m

Washington, D.C. Dulles Intl

Mon 21/9

17:42-09:35

3 stops28h 53m

฿35,565

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 22/4

21:40-17:30

2 stops30h 50m

Washington, D.C. Reagan-National

Sun 12/7

09:00-23:35

2 stops27h 35m

฿36,876

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 22/4

21:40-17:30

2 stops30h 50m

Washington, D.C. Reagan-National

Wed 8/7

10:00-23:35

2 stops26h 35m

฿36,876

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 22/4

21:40-17:30

2 stops30h 50m

Washington, D.C. Reagan-National

Tue 7/7

09:00-01:05

2 stops29h 05m

฿36,876

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 22/4

21:40-17:30

2 stops30h 50m

Washington, D.C. Reagan-National

Thu 9/7

10:00-23:35

2 stops26h 35m

฿36,876

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 19/4

21:40-14:56

2 stops28h 16m

Washington, D.C. Reagan-National

Sun 26/4

08:00-23:35

2 stops28h 35m

฿37,068

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 24/4

07:00-22:28

2 stops26h 28m

Washington, D.C. Reagan-National

Fri 1/5

06:30-09:35

3 stops40h 05m

฿37,420

Flights are sorted by cheapest return flights first.

Deals found on 9/3

Showing 1-10 of 60 resultsSorted by cheapest first
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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 return 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 ฿30,576). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿36,364). 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.

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 10 March 2026.
Get a feel of what it's like to fly with เดลต้า from Thailand to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
เดลต้า
7.9
Good
8,276 reviews
Check prices

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
เดลต้า
7.9
Good
8,276 reviews
เดลต้า
7.9
Good
8,276 reviews
Check prices

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.?

    Departing from Thailand to Washington, D.C. will take you 30h 50m. Airlines will cover a distance of 14157 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    The most popular route from Thailand to Washington, D.C. is Bangkok Suvarnabhumi - Washington, D.C. Dulles Intl. You may also consider Bangkok Suvarnabhumi - Baltimore/Washington or 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 holiday 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 ฿30,576). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿36,364). 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

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.
Chiang Mai to Dulles Intl flights
Chiang Mai to Reagan-National flights

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 17,341 searches. Data last updated 10 March 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest฿31,035Average฿33,713FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿31,903Average฿32,288FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿32,342Average฿34,880FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿33,886Average฿42,567FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿35,949Average฿39,603FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Thailand to Washington, D.C.?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Thailand to Washington, D.C.. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Thailand to Washington, D.C.?

Cheapflights simply makes it quick and affordable to book flights from Thailand to Washington, D.C. by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Thailand to Washington, D.C. with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Thailand to Washington, D.C., users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Thailand to Washington, D.C. become cheaper?

Yes! Start tracking prices for Thailand to Washington, D.C. flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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