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Cheap flights from Bangkok to Washington, D.C. from ฿14,789

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 16/12. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
21 Dec — 28 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 21 November 2025.

Thu 27/1119:30BKK - IAD
1 stop35h 00mMultiple Airlines
Thu 15/114:35IAD - BKK
1 stop20h 45mMultiple Airlines
Deal found 20/11฿32,692
Fri 12/1214:40BKK - IAD
1 stop36h 50mเอทิฮัดแอร์เวย์
Sat 3/114:35IAD - BKK
1 stop20h 45mเอทิฮัดแอร์เวย์
Deal found 20/11฿32,984
Mon 22/1213:40DMK - IAD
2 stops31h 25mMultiple Airlines
Tue 6/114:35IAD - DMK
2 stops25h 45mMultiple Airlines
Deal found 19/11฿33,017
Thu 27/1119:30BKK - IAD
1 stop35h 00mMultiple Airlines
Wed 14/114:35IAD - BKK
1 stop20h 45mMultiple Airlines
Deal found 20/11฿33,828
Mon 22/1216:55BKK - DCA
3 stops30h 02mUnited Airlines
Tue 6/119:59DCA - BKK
2 stops40h 21mUnited Airlines
Deal found 19/11฿33,990
Mon 22/1205:50BKK - IAD
1 stop25h 30mMultiple Airlines
Tue 6/113:30IAD - BKK
2 stops43h 35mMultiple Airlines
Deal found 19/11฿34,055
Sun 21/1210:10BKK - IAD
1 stop37h 35mMultiple Airlines
Wed 7/114:35IAD - BKK
1 stop40h 10mMultiple Airlines
Deal found 19/11฿34,703
Mon 22/1215:30BKK - IAD
2 stops39h 50mIndiGo
Tue 6/113:30IAD - BKK
2 stops43h 35mIndiGo
Deal found 19/11฿34,865
Sun 21/1215:30BKK - IAD
2 stops39h 50mIndiGo
Wed 7/113:30IAD - BKK
2 stops43h 35mIndiGo
Deal found 19/11฿34,930
Wed 3/1207:10BKK - DCA
2 stops26h 26mUnited Airlines
Mon 5/108:30DCA - BKK
3 stops38h 55mUnited Airlines
Deal found 19/11฿35,611
Mon 22/1219:30BKK - IAD
1 stop35h 00mAir China
Tue 6/122:00IAD - BKK
1 stop32h 05mAir China
Deal found 19/11฿35,709
Sun 21/1216:55BKK - IAD
3 stops35h 29mUnited Airlines
Wed 7/108:25IAD - BKK
2 stops32h 45mUnited Airlines
Deal found 19/11฿35,903

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 21 November 2025.

Round-trip from

฿29,546

One-way from

฿14,789

Popular in

August

Cheapest in

October

Average price

฿36,163
18/2-23/2
  • 18/2-23/2
  • 4 total stops
  • 99h 30m total
  • Bangkok to Washington, D.C.
Search Deals
16/12
  • 16/12
  • 3 total stops
  • 51h 49m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (฿68,621 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿31,207 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 21 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 - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 1/3

10:50-09:05

2 stops34h 15m

Washington, D.C. Dulles Intl

Tue 31/3

15:35-23:55

1 stop21h 20m

฿30,682

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Wed 18/2

13:40-09:05

2 stops31h 25m

Washington, D.C. Dulles Intl

Mon 23/2

14:35-02:30

2 stops23h 55m

฿31,136

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Sun 1/3

13:40-09:05

2 stops31h 25m

Washington, D.C. Dulles Intl

Tue 31/3

15:35-04:25

2 stops25h 50m

฿31,946

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 12/5

02:40-17:05

2 stops49h 25m

Washington, D.C. Dulles Intl

Wed 3/6

17:30-12:10

2 stops31h 40m

฿33,536

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 18/2

08:00-19:59

2 stops23h 59m

Washington, D.C. Reagan-National

Mon 23/2

09:40-22:30

2 stops24h 50m

฿33,600

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 5/3

21:30-09:50

1 stop24h 20m

Washington, D.C. Dulles Intl

Wed 15/4

13:15-23:40

1 stop23h 25m

฿33,828

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 2/4

15:40-11:45

3 stops31h 05m

Washington, D.C. Reagan-National

Tue 14/4

11:30-09:45

3 stops35h 15m

฿33,860

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 13/5

15:40-14:03

3 stops33h 23m

Washington, D.C. Dulles Intl

Wed 3/6

08:40-04:35

2 stops32h 55m

฿33,860

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 16/2

21:30-09:50

1 stop24h 20m

Washington, D.C. Dulles Intl

Sun 22/3

12:50-23:20

1 stop23h 30m

฿33,892

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 22/12

16:55-10:57

3 stops30h 02m

Washington, D.C. Reagan-National

Tue 6/1

19:59-00:20

2 stops40h 21m

฿33,990

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Showing 1-10 of 57 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 ฿29,773). Flying from Bangkok to Washington, D.C. in December is currently the most expensive (average of ฿34,768). 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 21 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 21 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
1,009 reviews
Check prices

Entertainment

7.9

Crew

8.7

Food

7.7

Comfort

8.2

Overall

8.4

Boarding

8.6

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
1,009 reviews
ANA
8.4
Very Good
1,009 reviews
Check prices

Entertainment

7.9

Crew

8.7

Food

7.7

Comfort

8.2

Overall

8.4

Boarding

8.6

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
1,170 reviews
ANA
8.4
Very Good
1,009 reviews
Check prices

Entertainment

7.9

Crew

8.7

Food

7.7

Comfort

8.2

Overall

8.4

Boarding

8.6

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
3,664 reviews
ANA
8.4
Very Good
1,009 reviews
Check prices

Entertainment

7.9

Crew

8.7

Food

7.7

Comfort

8.2

Overall

8.4

Boarding

8.6

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
9,028 reviews
ANA
8.4
Very Good
1,009 reviews
Check prices

Entertainment

7.9

Crew

8.7

Food

7.7

Comfort

8.2

Overall

8.4

Boarding

8.6

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 23h 59m. Fly via แอร์แคนาดา, Korean Air, or United Airlines to get the fastest option. Airlines will cover a distance of 14157 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 ฿28,574, 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 ฿31,478 and ฿33,911, 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.?

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

  • 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 ฿29,773). Flying from Bangkok to Washington, D.C. in December is currently the most expensive (average of ฿34,768). 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 21 November 2025.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿28,574Average฿31,378FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿31,478Average฿33,298FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Korean AirCheapest฿33,911Average฿38,403FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿34,363Average฿42,172FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿39,855Average฿45,841FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest฿42,387Average฿47,516FlexibilityNo 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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