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Cheap flights from Thailand to Washington, D.C. from ฿20,469

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
30 Jul — 6 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 30 June 2026.

Sun 4/1009:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Sat 24/1012:40
IAD
-
BKK
3 stops35h 50m
United Airlines
Deal found 28/6฿29,423
Sun 4/1009:35
BKK
-
DCA
2 stops45h 34m
United Airlines
Sat 24/1016:24
DCA
-
BKK
3 stops32h 06m
United Airlines
Deal found 27/6฿29,489
Thu 17/909:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Mon 21/906:15
IAD
-
BKK
2 stops29h 00m
United Airlines
Deal found 26/6฿31,120
Thu 10/909:35
BKK
-
DCA
2 stops47h 24m
United Airlines
Sun 13/906:30
DCA
-
BKK
2 stops35h 05m
United Airlines
Deal found 26/6฿31,187
Sun 5/707:00
BKK
-
IAD
2 stops27h 19m
United Airlines
Sun 12/712:36
IAD
-
BKK
2 stops33h 59m
United Airlines
Deal found 27/6฿31,253
Thu 17/907:00
BKK
-
DCA
2 stops24h 09m
United Airlines
Mon 21/908:25
DCA
-
BKK
2 stops28h 30m
United Airlines
Deal found 26/6฿31,353
Wed 30/907:00
BKK
-
IAD
2 stops35h 19m
United Airlines
Sun 4/1008:20
IAD
-
BKK
2 stops33h 15m
United Airlines
Deal found 28/6฿31,353
Thu 9/709:35
BKK
-
IAD
1 stop41h 15m
United Airlines
Thu 20/808:35
IAD
-
BKK
2 stops28h 20m
United Airlines
Deal found 30/6฿31,453
Thu 9/709:35
BKK
-
DCA
2 stops47h 18m
United Airlines
Mon 20/711:57
DCA
-
BKK
3 stops34h 38m
United Airlines
Deal found 30/6฿31,520
Fri 3/707:00
BKK
-
IAD
2 stops25h 00m
United Airlines
Sat 25/712:50
IAD
-
BKK
1 stop28h 45m
United Airlines
Deal found 27/6฿31,553
Thu 8/1015:45
BKK
-
IAD
3 stops40h 42m
United Airlines
Sun 10/122:10
IAD
-
BKK
2 stops38h 10m
United Airlines
Deal found 26/6฿31,619
Thu 9/707:00
BKK
-
DCA
2 stops25h 53m
ANA
Thu 20/813:04
DCA
-
BKK
2 stops28h 31m
ANA
Deal found 30/6฿33,350

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 30 June 2026.

Round-trip from

฿26,660

One-way from

฿20,469

Popular in

April

Cheapest in

October

Average price

฿36,712
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 22/10-7/11
  • 2 total stops
  • 66h 50m total
  • Thailand to Washington, D.C.
Search Deals
AIR PREMIA
  • AIR PREMIA
  • 8/9
  • 1 total stop
  • 23h 05m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (฿262,926 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿70,309 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 30 June 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 - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 10/9

09:35-21:59

2 stops47h 24m

Washington, D.C. Reagan-National

Sun 13/9

06:30-04:35

2 stops35h 05m

฿31,553

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 31/8

07:00-00:32

2 stops28h 32m

Washington, D.C. Dulles Intl

Wed 30/9

12:58-09:35

2 stops33h 37m

฿32,385

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 17/9

09:50-11:05

1 stop36h 15m

Washington, D.C. Dulles Intl

Mon 21/9

13:15-01:05

1 stop24h 50m

฿34,781

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 6/12

00:55-23:51

2 stops34h 56m

Washington, D.C. Dulles Intl

Thu 7/1

07:15-23:20

2 stops28h 05m

฿34,815
Fastest return journey

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 8/10

23:30-11:05

1 stop22h 35m

Washington, D.C. Dulles Intl

Sun 10/1

11:50-23:20

1 stop23h 30m

฿34,981

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 20/10

09:50-23:45

2 stops24h 55m

Washington, D.C. Reagan-National

Sun 25/10

07:59-21:30

2 stops26h 31m

฿35,181

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 17/7

09:50-00:41

2 stops25h 51m

Washington, D.C. Dulles Intl

Fri 14/8

06:10-21:45

2 stops28h 35m

฿35,846

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 10/7

15:45-15:50

2 stops35h 05m

Washington, D.C. Dulles Intl

Wed 22/7

15:56-09:35

3 stops30h 39m

฿37,544

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sat 18/7

15:45-15:50

2 stops35h 05m

Washington, D.C. Dulles Intl

Sat 8/8

14:35-09:35

3 stops32h 00m

฿37,677

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 21/7

15:45-08:54

3 stops28h 09m

Washington, D.C. Reagan-National

Mon 10/8

11:57-09:35

3 stops34h 38m

฿37,710

Flights are sorted by cheapest return flights first.

Deals found on 25/6

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 ฿15,710). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿37,577). 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 30 June 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
8,451 reviews
Check prices

Food

7.2

Overall

7.8

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

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
8,451 reviews
เดลต้า
7.8
Good
8,451 reviews
Check prices

Food

7.2

Overall

7.8

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

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
9,901 reviews
เดลต้า
7.8
Good
8,451 reviews
Check prices

Food

7.2

Overall

7.8

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

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 34h 56m. Airlines will cover a distance of 14149 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 - Washington, D.C. Reagan-National or Bangkok Don Mueang Intl - Washington, D.C. Dulles Intl.

  • 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 ฿15,710). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿37,577). 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 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 17,341 searches. Data last updated 30 June 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest฿32,175Average฿33,781FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿33,201Average฿33,601FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿33,560Average฿36,682FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿36,437Average฿41,522FlexibilityNo cancel feeOn-time80%
Search ANA 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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