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Cheap flights from Bangkok to Washington, D.C. from ฿14,673

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
2 Dec — 9 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Bangkok to Washington, D.C.

Enter your travel dates to find the best prices.

Cheapest flights from Bangkok to Washington, D.C.
Explore the most affordable flight options available from Bangkok to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 November 2025.

Sat 20/1210:50BKK - IAD
2 stops44h 30mIndiGo
Wed 14/113:30IAD - BKK
2 stops43h 35mIndiGo
Deal found 1/11฿29,282
Thu 18/1201:30BKK - IAD
1 stop29h 00mAir China
Fri 9/122:00IAD - BKK
1 stop32h 05mAir China
Deal found 2/11฿29,701
Mon 15/1201:30BKK - IAD
1 stop29h 00mAir China
Fri 9/122:00IAD - BKK
1 stop32h 05mAir China
Deal found 2/11฿29,734
Thu 18/1215:20BKK - IAD
1 stop34h 45mซาอุเดียแอร์ไลน์
Sat 10/118:10IAD - BKK
1 stop41h 20mซาอุเดียแอร์ไลน์
Deal found 2/11฿29,766
Sun 14/1210:50BKK - IAD
2 stops44h 30mIndiGo
Sun 4/121:15IAD - BKK
2 stops35h 50mIndiGo
Deal found 2/11฿29,895
Mon 3/1101:30BKK - IAD
1 stop29h 00mAir China
Tue 18/1122:00IAD - BKK
1 stop32h 05mAir China
Deal found 1/11฿30,314
Sun 14/1210:50BKK - IAD
2 stops44h 30mMultiple Airlines
Sun 4/110:40IAD - BKK
1 stop20h 45mMultiple Airlines
Deal found 2/11฿31,153
Sun 21/1210:50BKK - IAD
2 stops44h 30mIndiGo
Thu 1/113:30IAD - BKK
2 stops42h 20mIndiGo
Deal found 1/11฿31,185
Fri 19/1210:50BKK - IAD
2 stops44h 30mIndiGo
Fri 9/121:15IAD - BKK
2 stops35h 50mIndiGo
Deal found 2/11฿31,249
Fri 19/1202:55BKK - IAD
1 stop42h 10mเอทิฮัดแอร์เวย์
Wed 14/114:35IAD - BKK
1 stop20h 45mเอทิฮัดแอร์เวย์
Deal found 2/11฿31,314
Fri 19/1207:10BKK - DCA
2 stops28h 39mUnited Airlines
Fri 9/114:00DCA - BKK
3 stops33h 25mUnited Airlines
Deal found 2/11฿33,765
Fri 14/1116:05BKK - BWI
2 stops26h 13mMultiple Airlines
Mon 17/1107:38BWI - BKK
2 stops39h 52mMultiple Airlines
Deal found 31/10฿33,926

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

Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 2 November 2025.

Round-trip from

฿29,282

One-way from

฿14,673

Popular in

August

Cheapest in

July

Average price

฿35,958
IndiGo
  • IndiGo
  • 20/12-14/1
  • 4 total stops
  • 88h 05m total
  • Bangkok to Washington, D.C.
Search Deals
15/11
  • 15/11
  • 3 total stops
  • 57h 48m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (฿57,520 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿29,907 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Bangkok 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 2 November 2025.
Use the filters below to find and compare flights from Bangkok to Washington, D.C. that are best for you.

Fly from

Bangkok

Fly to

Washington, D.C.

Route

Depart

Return

Price

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 19/12

07:10-23:49

2 stops28h 39m

Washington, D.C. Reagan-National

Fri 9/1

14:00-11:25

3 stops33h 25m

฿33,765

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Fri 14/11

16:05-06:18

2 stops26h 13m

Baltimore/Washington

Mon 17/11

07:38-11:30

2 stops39h 52m

฿33,926

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 18/11

08:15-22:35

2 stops26h 20m

Washington, D.C. Reagan-National

Sat 29/11

06:00-06:30

2 stops36h 30m

฿34,152

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 18/2

08:00-20:30

2 stops24h 30m

Washington, D.C. Dulles Intl

Sun 22/2

09:45-06:30

2 stops32h 45m

฿34,345

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 15/2

02:15-05:55

2 stops39h 40m

Washington, D.C. Dulles Intl

Sun 22/3

07:00-10:45

2 stops40h 45m

฿34,668

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Thu 19/3

10:55-05:35

2 stops29h 40m

Baltimore/Washington

Tue 31/3

18:55-09:45

2 stops27h 50m

฿35,022

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 4/3

00:55-09:50

1 stop20h 55m

Washington, D.C. Dulles Intl

Wed 15/4

13:15-23:40

1 stop23h 25m

฿35,700

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 21/12

02:05-23:27

2 stops33h 22m

Washington, D.C. Dulles Intl

Sun 11/1

06:00-00:55

2 stops30h 55m

฿36,054

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 10/3

00:55-16:32

2 stops26h 37m

Washington, D.C. Reagan-National

Sun 15/3

10:00-00:45

2 stops27h 45m

฿36,087

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 16/2

09:40-09:50

1 stop36h 10m

Washington, D.C. Dulles Intl

Sun 22/3

12:50-23:20

1 stop23h 30m

฿36,087

Flights are sorted by cheapest return flights first.

Deals found on 2/11

Showing 1-10 of 60 results
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Best time to book a flight from Bangkok to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Bangkok 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 Bangkok to Washington, D.C.

What is the cheapest month to book a flight from Bangkok to Washington, D.C.?

Currently, March is the cheapest month in which you can book a flight from Bangkok to Washington, D.C. (average of ฿29,572). Flying from Bangkok to Washington, D.C. in December is currently the most expensive (average of ฿34,958). 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 BKK to WAS?

Find hourly flight availability from Bangkok 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 2 November 2025.

It’s optimal to fly from Bangkok to Washington, D.C. at midday. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight in the afternoon.

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 2 November 2025.
Get a feel of what it's like to fly with ANA, Korean Air, andQatar Airways from Bangkok 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.
ANA
8.4
Very Good
1,000 reviews
Check prices

Boarding

8.6

Crew

8.7

Comfort

8.2

Entertainment

7.9

Food

7.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.
ANA
8.4
Very Good
1,000 reviews
ANA
8.4
Very Good
1,000 reviews
Check prices

Boarding

8.6

Crew

8.7

Comfort

8.2

Entertainment

7.9

Food

7.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.
Korean Air
8.4
Very Good
1,158 reviews
ANA
8.4
Very Good
1,000 reviews
Check prices

Boarding

8.6

Crew

8.7

Comfort

8.2

Entertainment

7.9

Food

7.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.
Qatar Airways
7.4
Good
3,659 reviews
ANA
8.4
Very Good
1,000 reviews
Check prices

Boarding

8.6

Crew

8.7

Comfort

8.2

Entertainment

7.9

Food

7.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.
United Airlines
7.4
Good
8,996 reviews
ANA
8.4
Very Good
1,000 reviews
Check prices

Boarding

8.6

Crew

8.7

Comfort

8.2

Entertainment

7.9

Food

7.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Related info for your journey

Find useful and relevant information for your journey from Bangkok 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 Bangkok to Washington, D.C.?

    There are many flights that can get you from Bangkok to Washington, D.C. in 20h 55m. Fly via United Airlines, แอร์แคนาดา, or Korean Air to get the fastest option. Airlines will cover a distance of 14149 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Bangkok to Washington, D.C. round-trip?

    Currently priced at ฿28,412, ซาอุเดียแอร์ไลน์ will fly you from Bangkok to Washington, D.C. and back. In addition to ซาอุเดียแอร์ไลน์, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Korean Air - these airlines can fly you to your destination from ฿31,299 and ฿33,719, respectively. These flights start at 25% lower than the current average price 3 months from now.

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

    The most popular flight routes from Bangkok to Washington, D.C. are Bangkok Suvarnabhumi - Washington, D.C. Dulles Intl, Bangkok Suvarnabhumi - Baltimore/Washington and Bangkok Suvarnabhumi - Washington, D.C. Reagan-National.

  • Can I find deals for flights from Bangkok to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Bangkok to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Bangkok 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 Bangkok to Washington, D.C..

  • Can I find deals for business class flights from Bangkok to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Bangkok 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 Bangkok to Washington, D.C.?

    Currently, March is the cheapest month in which you can book a flight from Bangkok to Washington, D.C. (average of ฿29,572). Flying from Bangkok to Washington, D.C. in December is currently the most expensive (average of ฿34,958). 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 Bangkok 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 6 airlines flying from Bangkok to Washington, D.C.

Discover the top 6 airlines that operate flights from Bangkok 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 2 November 2025.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿28,412Average฿31,200FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿31,299Average฿33,110FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Korean AirCheapest฿33,719Average฿38,186FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿34,168Average฿41,933FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿39,630Average฿45,581FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest฿42,147Average฿47,247FlexibilityNo cancel feeOn-time75%
Search Emirates 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 Bangkok to Washington, D.C.?

Deals for Bangkok to Washington, D.C. flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Bangkok to Washington, D.C..

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

Yes, we can. To see specific flights from Bangkok to Washington, D.C. with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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