Cheap flights from Bangkok to Washington, D.C. from ฿17,440

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 29/1. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
6 Jan — 13 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 7 December 2025.

Thu 25/1201:30BKK - IAD
1 stop29h 00mAir China
Fri 2/122:00IAD - BKK
1 stop35h 30mAir China
Deal found 7/12฿31,760
Sun 21/1210:10BKK - IAD
1 stop37h 35mเตอร์กิชแอร์ไลน์
Thu 1/113:30IAD - BKK
1 stop31h 10mเตอร์กิชแอร์ไลน์
Deal found 7/12฿33,479
Thu 11/1201:30BKK - IAD
1 stop29h 00mMultiple Airlines
Sat 3/114:35IAD - BKK
1 stop20h 50mMultiple Airlines
Deal found 5/12฿33,893
Sat 20/1215:30BKK - IAD
2 stops39h 50mIndiGo
Wed 14/113:30IAD - BKK
2 stops43h 35mIndiGo
Deal found 6/12฿34,943
Fri 26/1208:15BKK - IAD
2 stops24h 44mMultiple Airlines
Fri 2/114:35IAD - BKK
1 stop40h 10mMultiple Airlines
Deal found 7/12฿35,197
Fri 19/1202:00BKK - IAD
1 stop25h 55mMultiple Airlines
Wed 14/120:05IAD - BKK
1 stop29h 00mMultiple Airlines
Deal found 6/12฿35,579
Sat 20/1219:50BKK - IAD
1 stop24h 30mQatar Airways
Wed 14/120:05IAD - BKK
1 stop28h 10mQatar Airways
Deal found 6/12฿35,643
Wed 24/1216:55BKK - IAD
3 stops30h 53mUnited Airlines
Sun 4/118:01IAD - BKK
2 stops47h 09mUnited Airlines
Deal found 6/12฿35,770
Wed 24/1218:40DMK - IAD
2 stops32h 05mMultiple Airlines
Sun 4/114:35IAD - DMK
3 stops34h 15mMultiple Airlines
Deal found 6/12฿43,281
Fri 26/1216:55BKK - DCA
3 stops29h 04mUnited Airlines
Fri 2/112:45DCA - BKK
3 stops34h 40mUnited Airlines
Deal found 7/12฿44,808
Sun 21/1216:55BKK - BWI
3 stops42h 21mUnited Airlines
Thu 1/106:30BWI - BKK
2 stops40h 55mUnited Airlines
Deal found 5/12฿46,686
Sun 21/1216:55BKK - BWI
3 stops42h 21mUnited Airlines
Fri 2/106:30BWI - BKK
2 stops40h 55mUnited Airlines
Deal found 5/12฿48,913

Find 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 7 December 2025.

Round-trip from

฿31,760

One-way from

฿17,440

Popular in

August

Cheapest in

October

Average price

฿40,257
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 3/4-18/4
  • 2 total stops
  • 67h 15m total
  • Bangkok to Washington, D.C.
29/1
  • 29/1
  • 3 total stops
  • 58h 12m total
  • Bangkok to Washington, D.C.
Highest demand for flights based on searches. 2% potential increase in price (฿33,822 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (฿29,921 potential savings vs. average return price).
Average for round-trip flights in December 2025

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 7 December 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

Thu 29/1

14:40-20:00

2 stops41h 20m

Washington, D.C. Reagan-National

Tue 10/2

09:59-11:30

2 stops37h 31m

฿31,919

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 28/1

17:15-20:00

2 stops38h 45m

Washington, D.C. Reagan-National

Tue 10/2

09:59-11:30

2 stops37h 31m

฿31,919

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 28/1

08:15-12:19

2 stops40h 04m

Washington, D.C. Reagan-National

Wed 11/2

06:00-22:30

2 stops28h 30m

฿32,938

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 29/1

08:15-12:19

2 stops40h 04m

Washington, D.C. Reagan-National

Mon 9/2

11:05-00:20

2 stops49h 15m

฿32,938

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 26/1

08:15-21:58

2 stops49h 43m

Washington, D.C. Reagan-National

Tue 10/2

16:15-00:20

2 stops44h 05m

฿33,065

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Wed 11/2

10:55-05:45

2 stops30h 50m

Baltimore/Washington

Wed 18/3

08:35-09:50

2 stops38h 15m

฿33,161

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 5/3

09:40-09:50

1 stop36h 10m

Washington, D.C. Dulles Intl

Wed 15/4

13:15-13:15

1 stop37h 00m

฿33,256

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 20/1

09:10-07:14

2 stops34h 04m

Washington, D.C. Dulles Intl

Tue 27/1

13:05-11:25

3 stops34h 20m

฿33,383

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 23/1

07:10-21:52

2 stops26h 42m

Washington, D.C. Reagan-National

Mon 26/1

14:00-11:25

3 stops33h 25m

฿33,542

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 28/1

08:15-12:19

2 stops40h 04m

Washington, D.C. Reagan-National

Sat 14/2

11:05-22:30

2 stops47h 25m

฿33,574

Flights are sorted by cheapest return flights first.

Deals found on 6/12

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 ฿29,214). Flying from Bangkok to Washington, D.C. in December is currently the most expensive (average of ฿34,115). 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 7 December 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 7 December 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.

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Mario,Nov 2025

HND - BKK

Option to use Bluetooth headphones when connecting to in flight entertainment system. I want to use my own headsets with noise cancelling support
8.4
Very Good

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Mario,Nov 2025

HND - BKK

Option to use Bluetooth headphones when connecting to in flight entertainment system. I want to use my own headsets with noise cancelling support

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Mario,Nov 2025

HND - BKK

Option to use Bluetooth headphones when connecting to in flight entertainment system. I want to use my own headsets with noise cancelling support

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Mario,Nov 2025

HND - BKK

Option to use Bluetooth headphones when connecting to in flight entertainment system. I want to use my own headsets with noise cancelling support

Comfort

8.2

Overall

8.4

Crew

8.7

Entertainment

7.9

Food

7.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Mario,Nov 2025

HND - BKK

Option to use Bluetooth headphones when connecting to in flight entertainment system. I want to use my own headsets with noise cancelling support

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 36h 10m. Fly via แอร์แคนาดา, Korean Air, or United Airlines 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 ฿28,038, 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 เอทิฮัดแอร์เวย์ - these airlines can fly you to your destination from ฿30,887 and ฿31,745, respectively. These flights start at 24% lower than the current average price 3 months from now.

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

  • 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 ฿29,214). Flying from Bangkok to Washington, D.C. in December is currently the most expensive (average of ฿34,115). 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

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Alternative routes for Bangkok to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Bangkok to Washington, D.C.

Discover the top 7 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 7 December 2025.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿28,038Average฿30,789FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿30,887Average฿32,666FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿31,745Average฿32,128FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿32,181Average฿35,829FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿33,718Average฿41,381FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿39,107Average฿46,538FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest฿41,591Average฿45,776FlexibilityNo 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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