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Cheap flights from Bangkok to Washington, D.C. from ฿16,997

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 13/4. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
3 Feb — 10 Feb1
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 4 January 2026.

Mon 2/210:10BKK - IAD
2 stops45h 10mIndiGo
Sat 21/213:30IAD - BKK
2 stops42h 20mIndiGo
Deal found 1/1฿27,951
Mon 2/210:10BKK - IAD
2 stops45h 10mIndiGo
Mon 9/221:15IAD - BKK
2 stops35h 50mIndiGo
Deal found 3/1฿29,115
Mon 2/210:10BKK - IAD
2 stops45h 10mMultiple Airlines
Sat 21/214:35IAD - BKK
1 stop20h 50mMultiple Airlines
Deal found 1/1฿29,713
Sun 1/215:30BKK - IAD
2 stops39h 50mIndiGo
Sun 8/213:30IAD - BKK
2 stops42h 20mIndiGo
Deal found 2/1฿29,871
Sat 31/110:10BKK - IAD
2 stops45h 10mIndiGo
Sat 7/213:30IAD - BKK
2 stops43h 35mIndiGo
Deal found 3/1฿29,934
Thu 5/210:50BKK - IAD
2 stops44h 30mMultiple Airlines
Mon 27/415:35IAD - BKK
1 stop21h 15mMultiple Airlines
Deal found 3/1฿30,248
Sun 1/215:30BKK - IAD
2 stops39h 50mMultiple Airlines
Sun 8/214:35IAD - BKK
1 stop20h 50mMultiple Airlines
Deal found 2/1฿30,280
Mon 2/210:10BKK - IAD
2 stops45h 10mMultiple Airlines
Mon 9/214:35IAD - BKK
1 stop20h 50mMultiple Airlines
Deal found 3/1฿30,563
Mon 27/415:20BKK - IAD
1 stop35h 25mซาอุเดียแอร์ไลน์
Sat 21/1118:10IAD - BKK
1 stop31h 30mซาอุเดียแอร์ไลน์
Deal found 2/1฿31,256
Sat 31/110:10BKK - IAD
2 stops45h 10mMultiple Airlines
Sat 7/214:35IAD - BKK
1 stop20h 50mMultiple Airlines
Deal found 3/1฿31,665
Mon 2/215:20BKK - IAD
1 stop35h 25mซาอุเดียแอร์ไลน์
Sat 21/218:10IAD - BKK
1 stop41h 20mซาอุเดียแอร์ไลน์
Deal found 1/1฿32,074
Tue 17/210:50BKK - IAD
2 stops34h 15mMultiple Airlines
Tue 24/214:35IAD - BKK
1 stop20h 50mMultiple Airlines
Deal found 3/1฿32,515

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 4 January 2026.

Round-trip from

฿27,951

One-way from

฿16,997

Popular in

August

Cheapest in

October

Average price

฿40,132
IndiGo
  • IndiGo
  • 2/2-21/2
  • 4 total stops
  • 87h 30m total
  • Bangkok to Washington, D.C.
Search Deals
13/4
  • 13/4
  • 3 total stops
  • 57h 58m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (฿19,474 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿28,338 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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 4 January 2026.
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 2/2

08:00-21:58

2 stops25h 58m

Washington, D.C. Reagan-National

Mon 9/2

06:00-13:35

2 stops43h 35m

฿32,987

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Wed 18/3

13:40-10:05

2 stops31h 25m

Washington, D.C. Dulles Intl

Sat 4/4

15:35-02:40

2 stops24h 05m

฿33,050

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 17/2

07:10-11:21

2 stops40h 11m

Washington, D.C. Dulles Intl

Tue 24/2

13:02-11:25

3 stops34h 23m

฿33,176

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 2/2

16:55-21:17

3 stops40h 22m

Washington, D.C. Dulles Intl

Sat 21/2

19:13-11:25

2 stops28h 12m

฿33,333

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 16/2

16:55-16:05

3 stops35h 10m

Washington, D.C. Dulles Intl

Mon 23/2

15:45-11:25

2 stops31h 40m

฿33,396

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 8/4

15:40-11:58

3 stops31h 18m

Washington, D.C. Reagan-National

Tue 8/9

11:30-09:45

3 stops35h 15m

฿33,428

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 8/4

15:40-11:48

3 stops31h 08m

Washington, D.C. Dulles Intl

Tue 8/9

08:30-04:35

2 stops33h 05m

฿33,428

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 17/2

16:55-10:55

3 stops30h 00m

Washington, D.C. Reagan-National

Tue 24/2

06:00-00:20

2 stops30h 20m

฿33,522

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 24/3

16:55-10:55

3 stops29h 00m

Washington, D.C. Reagan-National

Tue 7/4

07:30-23:55

2 stops29h 25m

฿33,522

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 27/4

07:45-20:32

2 stops23h 47m

Washington, D.C. Dulles Intl

Sat 21/11

09:45-06:30

2 stops32h 45m

฿33,585

Flights are sorted by cheapest return flights first.

Deals found on 1/1

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 ฿28,863). Flying from Bangkok to Washington, D.C. in November is currently the most expensive (average of ฿33,679). 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.

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 4 January 2026.
Get a feel of what it's like to fly with Korean Air, Qatar Airways, andUnited Airlines 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.
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very Good
1,187 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Qatar Airways
7.4
Good
3,700 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
United Airlines
7.4
Good
9,137 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

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 28h 19m. Fly via United Airlines or EVA Air to get the fastest option. Airlines will cover a distance of 14120 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 ฿27,731, 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 ฿30,543 and ฿31,398, 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 ฿28,863). Flying from Bangkok to Washington, D.C. in November is currently the most expensive (average of ฿33,679). 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 4 January 2026.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿27,731Average฿30,452FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿30,543Average฿32,641FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿31,398Average฿31,777FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿31,829Average฿35,432FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿33,349Average฿39,634FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿38,496Average฿43,260FlexibilityNo cancel feeOn-time68%
Search Qatar Airways 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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