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Cheap flights from Bangkok to Washington, D.C. from ฿16,112

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 21/12. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
13 Dec — 20 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 13 November 2025.

Tue 18/1115:20BKK - IAD
1 stop35h 25mซาอุเดียแอร์ไลน์
Sat 29/1118:10IAD - BKK
1 stop41h 20mซาอุเดียแอร์ไลน์
Deal found 13/11฿30,182
Thu 13/1123:50BKK - BWI
2 stops42h 28mPhilippine Airlines
Thu 20/1119:16BWI - BKK
2 stops52h 44mPhilippine Airlines
Deal found 12/11฿30,668
Tue 23/1202:55BKK - IAD
1 stop42h 10mเอทิฮัดแอร์เวย์
Wed 13/515:35IAD - BKK
1 stop21h 20mเอทิฮัดแอร์เวย์
Deal found 13/11฿31,446
Fri 19/1202:55BKK - IAD
1 stop42h 10mเอทิฮัดแอร์เวย์
Wed 14/114:35IAD - BKK
1 stop40h 10mเอทิฮัดแอร์เวย์
Deal found 12/11฿31,478
Mon 17/1102:15BKK - DCA
2 stops29h 45mMultiple Airlines
Mon 24/1109:59DCA - BKK
2 stops37h 11mMultiple Airlines
Deal found 11/11฿32,321
Wed 24/1213:20BKK - IAD
2 stops28h 53mMultiple Airlines
Wed 13/515:35IAD - BKK
1 stop27h 55mMultiple Airlines
Deal found 13/11฿32,386
Sun 23/1108:55BKK - IAD
1 stop42h 35mMultiple Airlines
Wed 26/1111:50IAD - BKK
1 stop24h 55mMultiple Airlines
Deal found 11/11฿33,391
Sat 22/1100:55BKK - IAD
1 stop20h 55mKorean Air
Wed 26/1111:50IAD - BKK
1 stop25h 05mKorean Air
Deal found 11/11฿33,845
Tue 18/1121:30BKK - IAD
1 stop24h 20mKorean Air
Sat 29/1111:50IAD - BKK
1 stop24h 55mKorean Air
Deal found 11/11฿33,877
Wed 24/1216:55BKK - IAD
3 stops40h 26mUnited Airlines
Wed 13/508:30IAD - BKK
2 stops33h 05mUnited Airlines
Deal found 13/11฿33,910
Sun 23/1116:55BKK - DCA
3 stops38h 12mUnited Airlines
Wed 26/1114:51DCA - BKK
3 stops32h 34mUnited Airlines
Deal found 11/11฿33,975
Sun 23/1116:55BKK - IAD
3 stops40h 28mUnited Airlines
Wed 26/1120:04IAD - BKK
2 stops51h 21mUnited Airlines
Deal found 11/11฿33,975

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 13 November 2025.

Round-trip from

฿29,598

One-way from

฿16,112

Popular in

August

Cheapest in

October

Average price

฿36,147
9/3-5/5
  • 9/3-5/5
  • 4 total stops
  • 104h 46m total
  • Bangkok to Washington, D.C.
Search Deals
21/12
  • 21/12
  • 3 total stops
  • 34h 40m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (฿68,817 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿31,194 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 13 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

Mon 2/3

02:15-20:00

2 stops29h 45m

Washington, D.C. Reagan-National

Wed 15/4

09:30-10:55

2 stops38h 25m

฿32,970

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 22/1

02:15-20:00

2 stops29h 45m

Washington, D.C. Reagan-National

Sat 28/2

09:59-12:35

2 stops38h 36m

฿32,970

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 9/3

17:15-20:00

2 stops37h 45m

Washington, D.C. Reagan-National

Tue 5/5

09:59-10:25

2 stops37h 26m

฿32,970

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 1/3

20:50-09:05

1 stop24h 15m

Washington, D.C. Dulles Intl

Thu 14/5

15:35-18:15

1 stop39h 40m

฿33,294

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 5/3

20:50-09:05

1 stop24h 15m

Washington, D.C. Dulles Intl

Wed 15/4

15:35-18:15

1 stop39h 40m

฿33,294

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Tue 5/5

02:40-05:40

2 stops38h 00m

Baltimore/Washington

Wed 13/5

19:40-12:10

2 stops29h 30m

฿33,521

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 24/12

17:15-20:39

2 stops39h 24m

Washington, D.C. Reagan-National

Wed 13/5

18:38-10:55

2 stops29h 17m

฿33,553

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 6/5

10:50-17:05

2 stops41h 15m

Washington, D.C. Dulles Intl

Wed 13/5

17:30-12:10

2 stops31h 40m

฿33,586

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 1/3

02:15-17:59

2 stops27h 44m

Washington, D.C. Reagan-National

Wed 15/4

09:30-10:55

2 stops38h 25m

฿33,618

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 6/3

21:30-09:50

1 stop24h 20m

Washington, D.C. Dulles Intl

Sun 17/5

13:15-23:40

1 stop23h 25m

฿33,845

Flights are sorted by cheapest return flights first.

Deals found on 10/11

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 ฿29,728). Flying from Bangkok to Washington, D.C. in December is currently the most expensive (average of ฿34,753). 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 13 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.

How much does it cost for a return flight from Bangkok to Washington, D.C.?

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 13 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
1,004 reviews
Check prices

Entertainment

7.9

Overall

8.4

Crew

8.7

Comfort

8.2

Food

7.7

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
1,004 reviews
ANA
8.4
Very Good
1,004 reviews
Check prices

Entertainment

7.9

Overall

8.4

Crew

8.7

Comfort

8.2

Food

7.7

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
1,163 reviews
ANA
8.4
Very Good
1,004 reviews
Check prices

Entertainment

7.9

Overall

8.4

Crew

8.7

Comfort

8.2

Food

7.7

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
3,661 reviews
ANA
8.4
Very Good
1,004 reviews
Check prices

Entertainment

7.9

Overall

8.4

Crew

8.7

Comfort

8.2

Food

7.7

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
9,017 reviews
ANA
8.4
Very Good
1,004 reviews
Check prices

Entertainment

7.9

Overall

8.4

Crew

8.7

Comfort

8.2

Food

7.7

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 24h 15m. Fly via EVA Air or เอทิฮัดแอร์เวย์ 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 ฿28,561, 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 ฿31,464 and ฿33,896, respectively. These flights start at 24% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Bangkok to Washington, D.C. one-way?

    To fly one-way, consider booking your trip with Philippine Airlines, which is currently one of the cheapest options available, starting at ฿18,543. แอร์แคนาดา flights start at ฿19,808 while deals on Korean Air start at ฿20,262 one-way.

  • 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 ฿29,728). Flying from Bangkok to Washington, D.C. in December is currently the most expensive (average of ฿34,753). 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 13 November 2025.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿28,561Average฿31,364FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿31,464Average฿33,284FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Korean AirCheapest฿33,896Average฿38,386FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿34,347Average฿42,154FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿39,838Average฿45,821FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest฿42,368Average฿47,495FlexibilityNo 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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