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Cheap flights from Bangkok to Washington, D.C. from ฿17,819

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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
25 Feb — 4 Mar1
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 26 January 2026.

Wed 6/507:05
BKK
-
IAD
2 stops35h 45m
แอร์แคนาดา
Wed 13/512:39
IAD
-
BKK
2 stops29h 26m
แอร์แคนาดา
Deal found 24/1฿29,791
Tue 28/407:00
BKK
-
DCA
2 stops25h 53m
แอร์แคนาดา
Tue 5/516:20
DCA
-
BKK
2 stops49h 45m
แอร์แคนาดา
Deal found 24/1฿30,193
Mon 2/302:15
BKK
-
DCA
2 stops29h 50m
Multiple Airlines
Mon 11/509:59
DCA
-
BKK
2 stops37h 56m
Multiple Airlines
Deal found 25/1฿30,286
Tue 28/407:45
BKK
-
IAD
2 stops23h 52m
แอร์แคนาดา
Tue 5/509:55
IAD
-
BKK
2 stops26h 15m
แอร์แคนาดา
Deal found 24/1฿30,472
Tue 24/202:15
BKK
-
DCA
2 stops29h 50m
Multiple Airlines
Wed 4/309:59
DCA
-
BKK
2 stops37h 31m
Multiple Airlines
Deal found 25/1฿30,750
Tue 28/407:00
BKK
-
IAD
2 stops24h 37m
Multiple Airlines
Tue 5/515:10
IAD
-
BKK
1 stop28h 35m
Multiple Airlines
Deal found 24/1฿31,152
Tue 10/302:15
BKK
-
DCA
2 stops28h 50m
EVA Air
Mon 11/509:59
DCA
-
BKK
2 stops37h 56m
EVA Air
Deal found 23/1฿31,462
Tue 10/302:15
BKK
-
DCA
2 stops28h 50m
Multiple Airlines
Wed 18/309:59
DCA
-
BKK
2 stops50h 41m
Multiple Airlines
Deal found 25/1฿31,555
Wed 11/323:50
BKK
-
IAD
2 stops40h 50m
Multiple Airlines
Sun 10/515:10
IAD
-
BKK
1 stop28h 05m
Multiple Airlines
Deal found 24/1฿31,709
Fri 6/302:15
BKK
-
DCA
2 stops27h 44m
Multiple Airlines
Tue 10/309:59
DCA
-
BKK
2 stops37h 46m
Multiple Airlines
Deal found 25/1฿31,864
Tue 10/302:15
BKK
-
DCA
2 stops26h 44m
Multiple Airlines
Sun 10/509:59
DCA
-
BKK
2 stops37h 26m
Multiple Airlines
Deal found 23/1฿31,957
Mon 16/320:40
BKK
-
IAD
2 stops32h 45m
Multiple Airlines
Sun 22/315:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 24/1฿31,988

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 26 January 2026.

Round-trip from

฿29,791

One-way from

฿17,819

Popular in

August

Cheapest in

October

Average price

฿39,443
แอร์แคนาดา
  • แอร์แคนาดา
  • 6/5-13/5
  • 4 total stops
  • 65h 11m total
  • Bangkok to Washington, D.C.
Search Deals
2/3
  • 2/3
  • 3 total stops
  • 50h 42m total
  • Bangkok to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (฿22,157 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿27,681 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 26 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

Tue 28/4

07:00-22:28

2 stops26h 28m

Washington, D.C. Reagan-National

Tue 5/5

13:00-09:35

3 stops33h 35m

฿33,070

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Mon 30/3

21:05-15:40

2 stops29h 35m

Washington, D.C. Dulles Intl

Mon 27/4

15:10-02:35

2 stops24h 25m

฿33,596

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 3/3

16:55-11:49

3 stops30h 54m

Washington, D.C. Dulles Intl

Mon 11/5

18:40-09:35

2 stops27h 55m

฿33,782

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 2/3

14:45-09:05

2 stops30h 20m

Washington, D.C. Dulles Intl

Sat 9/5

15:10-23:50

1 stop21h 40m

฿34,277

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Mon 16/2

20:10-15:55

2 stops31h 45m

Washington, D.C. Dulles Intl

Sun 22/3

15:35-02:30

2 stops23h 55m

฿34,741

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Fri 10/4

21:10-15:40

2 stops29h 30m

Washington, D.C. Dulles Intl

Thu 23/4

15:10-02:40

2 stops24h 30m

฿35,050

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 16/2

07:10-15:55

2 stops44h 45m

Washington, D.C. Reagan-National

Sun 22/3

15:30-11:25

3 stops32h 55m

฿35,267

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 30/3

16:45-20:00

2 stops38h 15m

Washington, D.C. Reagan-National

Mon 27/4

18:59-10:55

2 stops28h 56m

฿35,947

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 16/3

20:30-16:55

1 stop31h 25m

Washington, D.C. Dulles Intl

Mon 23/3

21:05-06:15

1 stop22h 10m

฿36,164

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

Wed 15/4

15:10-02:35

2 stops24h 25m

฿36,195

Flights are sorted by cheapest return flights first.

Deals found on 25/1

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, June is the cheapest month in which you can book a flight from Bangkok to Washington, D.C. (average of ฿28,894). Flying from Bangkok to Washington, D.C. in January is currently the most expensive (average of ฿34,957). 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.

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 26 January 2026.
Get a feel of what it's like to fly with Korean Air and Qatar 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.
Korean Air
8.4
Very Good
1,188 reviews
Check prices

Food

8.1

Comfort

8.3

Overall

8.4

Crew

8.7

Boarding

8.5

Entertainment

8.2

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
1,188 reviews
Korean Air
8.4
Very Good
1,188 reviews
Check prices

Food

8.1

Comfort

8.3

Overall

8.4

Crew

8.7

Boarding

8.5

Entertainment

8.2

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
3,731 reviews
Korean Air
8.4
Very Good
1,188 reviews
Check prices

Food

8.1

Comfort

8.3

Overall

8.4

Crew

8.7

Boarding

8.5

Entertainment

8.2

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 26h 28m. Fly via United Airlines, EVA Air, or Qatar Airways 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 ฿27,255, 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 ฿30,019 and ฿30,859, 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 - 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, June is the cheapest month in which you can book a flight from Bangkok to Washington, D.C. (average of ฿28,894). Flying from Bangkok to Washington, D.C. in January is currently the most expensive (average of ฿34,957). 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 26 January 2026.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿27,255Average฿29,930FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿30,019Average฿32,077FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿30,859Average฿31,231FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿31,283Average฿34,094FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿32,776Average฿38,954FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿34,772Average฿41,739FlexibilityNo 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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