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Cheap flights from Thailand to Washington, D.C. from ฿19,363

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
11 Aug — 18 Aug1
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 12 July 2026.

Tue 13/1015:25
BKK
-
IAD
1 stop35h 20m
ซาอุเดียแอร์ไลน์
Sat 31/1018:10
IAD
-
BKK
1 stop32h 30m
ซาอุเดียแอร์ไลน์
Deal found 8/7฿29,658
Wed 30/909:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Sun 4/1008:20
IAD
-
BKK
2 stops33h 15m
United Airlines
Deal found 8/7฿33,810
Fri 25/909:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Tue 27/1010:35
IAD
-
BKK
2 stops31h 35m
United Airlines
Deal found 10/7฿33,843
Thu 27/807:00
BKK
-
IAD
2 stops33h 55m
United Airlines
Fri 28/808:20
IAD
-
BKK
2 stops33h 15m
United Airlines
Deal found 10/7฿33,876
Sat 26/909:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Wed 28/1008:16
IAD
-
BKK
2 stops29h 04m
United Airlines
Deal found 10/7฿33,943
Mon 13/709:35
BKK
-
IAD
1 stop41h 15m
United Airlines
Mon 20/717:42
IAD
-
BKK
3 stops28h 53m
United Airlines
Deal found 12/7฿34,042
Thu 27/807:00
BKK
-
DCA
2 stops26h 30m
United Airlines
Fri 28/809:30
DCA
-
BKK
2 stops32h 05m
United Airlines
Deal found 10/7฿34,076
Thu 3/915:25
BKK
-
IAD
1 stop35h 20m
Multiple Airlines
Wed 16/915:10
IAD
-
BKK
1 stop28h 35m
Multiple Airlines
Deal found 10/7฿34,109
Thu 12/1109:10
BKK
-
DCA
2 stops24h 43m
United Airlines
Tue 9/310:30
DCA
-
BKK
2 stops30h 40m
United Airlines
Deal found 11/7฿34,142
Thu 12/1109:10
BKK
-
IAD
2 stops27h 20m
United Airlines
Tue 9/318:50
IAD
-
BKK
2 stops28h 40m
United Airlines
Deal found 11/7฿34,142
Wed 14/1007:00
BKK
-
DCA
2 stops26h 30m
United Airlines
Wed 28/1008:30
DCA
-
BKK
2 stops28h 50m
United Airlines
Deal found 10/7฿34,175
Mon 13/709:35
BKK
-
DCA
2 stops39h 47m
United Airlines
Mon 20/711:57
DCA
-
BKK
3 stops34h 38m
United Airlines
Deal found 12/7฿34,242

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 12 July 2026.

Round-trip from

฿29,658

One-way from

฿19,363

Popular in

April

Cheapest in

October

Average price

฿36,035
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 13/10-31/10
  • 2 total stops
  • 67h 50m total
  • Thailand to Washington, D.C.
Search Deals
8/9
  • 8/9
  • 3 total stops
  • 34h 25m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (฿213,473 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (฿65,176 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 12 July 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

Tue 13/10

15:25-15:45

1 stop35h 20m

Washington, D.C. Dulles Intl

Sat 31/10

18:10-13:40

1 stop32h 30m

฿29,658

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 27/8

07:00-05:55

2 stops33h 55m

Washington, D.C. Dulles Intl

Fri 28/8

08:20-04:35

2 stops33h 15m

฿33,876

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 21/12

09:10-09:10

1 stop36h 00m

Washington, D.C. Dulles Intl

Mon 11/1

08:35-05:10

2 stops32h 35m

฿33,943

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 13/10

09:35-10:05

1 stop35h 30m

Washington, D.C. Dulles Intl

Sat 31/10

22:23-00:20

2 stops38h 57m

฿34,042

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 12/11

09:10-21:53

2 stops24h 43m

Washington, D.C. Reagan-National

Tue 9/3

10:30-05:10

2 stops30h 40m

฿34,142

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 12/11

09:10-21:04

2 stops23h 54m

Washington, D.C. Dulles Intl

Tue 9/3

12:20-05:10

1 stop28h 50m

฿34,142

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 14/10

07:00-22:30

2 stops26h 30m

Washington, D.C. Reagan-National

Wed 28/10

08:30-00:20

2 stops28h 50m

฿34,175

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 29/9

09:35-14:23

2 stops39h 48m

Washington, D.C. Reagan-National

Sat 3/10

19:00-09:35

2 stops27h 35m

฿34,275

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 21/9

15:45-12:08

3 stops31h 23m

Washington, D.C. Reagan-National

Sun 18/10

06:00-04:35

2 stops35h 35m

฿34,574

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sat 24/10

15:45-09:19

3 stops28h 34m

Washington, D.C. Dulles Intl

Thu 12/11

11:10-05:10

1 stop30h 00m

฿34,574

Flights are sorted by cheapest return flights first.

Deals found on 9/7

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, April is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of ฿15,676). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿37,496). 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.

How far ahead should I book a flight from Thailand to Washington, D.C.?

To ensure you get the cheapest price possible for a flight from Thailand to Washington, D.C., you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 12 July 2026.
Get a feel of what it's like to fly with เดลต้า and United Airlines 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
7.8
Good
8,458 reviews
Check prices

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
เดลต้า
7.8
Good
8,458 reviews
เดลต้า
7.8
Good
8,458 reviews
Check prices

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
United Airlines
7.4
Good
9,979 reviews
เดลต้า
7.8
Good
8,458 reviews
Check prices

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

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 21h 35m. Airlines will cover a distance of 13576 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 Don Mueang Intl - Washington, D.C. Dulles Intl 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, April is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of ฿15,676). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿37,496). 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 3 airlines flying from Thailand to Washington, D.C.

Discover the top 3 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 12 July 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest฿27,173Average฿35,076FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿33,129Average฿33,529FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿33,487Average฿36,603FlexibilityNo cancel feeOn-time81%
Search Korean Air 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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