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Washington, D.C.

$458+ Cheap flights from Bangkok to Washington, D.C. (WAS)

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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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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 July 31, 2025.

Round-trip from

$947
(Mytrip)

One-way from

$458
(Mytrip)

Popular in

August

Cheapest in

January

Average price

$1,087
From Bangkok to Washington, D.C. (WAS)
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One-way flight from Bangkok to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 11% potential increase in price ($149 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($60 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Bangkok to Washington, D.C.

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 July 31, 2025.

This Mytrip deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1411:20 pmBKK - BWI
3 stops34h 03mMultiple Airlines
Sun 9/215:45 amBWI - BKK
2 stops29h 40mMultiple Airlines
Deal found 7/31$947
This FlightHub deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1910:05 pmBKK - DCA
2 stops29h 06mJapan Airlines
Tue 8/267:20 pmDCA - BKK
2 stops32h 50mJapan Airlines
Deal found 7/28$989
This Gotogate deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1411:40 pmBKK - IAD
2 stops47h 05mIndiGo
Sun 9/219:40 pmIAD - BKK
2 stops38h 00mIndiGo
Deal found 7/31$1,001
This SAUDIA deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SAUDIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/183:20 pmBKK - IAD
1 stop35h 25mSAUDIA
Sat 11/296:10 pmIAD - BKK
1 stop41h 20mSAUDIA
Deal found 7/31$1,008
This Gotogate deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1411:40 pmBKK - IAD
2 stops47h 05mMultiple Airlines
Sun 9/211:30 pmIAD - BKK
1 stop38h 55mMultiple Airlines
Deal found 7/31$1,009
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/299:35 amBKK - IAD
1 stop35h 30mUnited Airlines
Fri 9/58:20 amIAD - BKK
2 stops33h 15mUnited Airlines
Deal found 7/30$1,024
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/297:00 amBKK - DCA
2 stops26h 09mUnited Airlines
Fri 9/51:00 pmDCA - BKK
2 stops28h 35mUnited Airlines
Deal found 7/30$1,033
This oojo deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:00 amBKK - IAD
1 stop20h 50mKorean Air
Wed 12/3111:50 amIAD - BKK
1 stop23h 30mKorean Air
Deal found 7/31$1,067
This ANA deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:00 amBKK - IAD
2 stops24h 55mANA
Sun 10/1912:15 pmIAD - BKK
1 stop29h 20mANA
Deal found 7/31$1,072
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/282:35 amBKK - DCA
2 stops29h 12mDelta
Fri 9/59:40 amDCA - BKK
2 stops25h 05mDelta
Deal found 7/30$1,089
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/282:35 amBKK - IAD
2 stops31h 57mDelta
Fri 9/57:30 amIAD - BKK
2 stops27h 15mDelta
Deal found 7/30$1,089
This Air Canada deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/188:15 amBKK - DCA
2 stops38h 11mAir Canada
Sat 11/296:00 amDCA - BKK
2 stops36h 30mAir Canada
Deal found 7/30$1,090

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated July 31, 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

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Sun 9/14

11:20 pm-10:23 pm

3 stops34h 03m

Baltimore/Washington

Sun 9/21

5:45 am-10:25 pm

2 stops29h 40m

$947

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 8/19

10:05 pm-4:11 pm

2 stops29h 06m

Washington, D.C. Reagan-National

Tue 8/26

7:20 pm-3:10 pm

2 stops32h 50m

$989

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 9/14

11:40 pm-11:45 am

2 stops47h 05m

Washington, D.C. Dulles Intl

Sun 9/21

9:40 pm-10:40 pm

2 stops38h 00m

$1,001

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 11/18

3:20 pm-2:45 pm

1 stop35h 25m

Washington, D.C. Dulles Intl

Sat 11/29

6:10 pm-11:30 pm

1 stop41h 20m

$1,008

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 9/14

11:40 pm-11:45 am

2 stops47h 05m

Washington, D.C. Dulles Intl

Sun 9/21

1:30 pm-3:25 pm

1 stop38h 55m

$1,009

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 8/29

9:35 am-10:05 am

1 stop35h 30m

Washington, D.C. Dulles Intl

Fri 9/5

8:20 am-4:35 am

2 stops33h 15m

$1,024

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 8/29

7:00 am-10:09 pm

2 stops26h 09m

Washington, D.C. Reagan-National

Fri 9/5

1:00 pm-4:35 am

2 stops28h 35m

$1,033

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 12/4

1:00 am-9:50 am

1 stop20h 50m

Washington, D.C. Dulles Intl

Wed 12/31

11:50 am-11:20 pm

1 stop23h 30m

$1,067

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 10/3

7:00 am-8:55 pm

2 stops24h 55m

Washington, D.C. Dulles Intl

Sun 10/19

12:15 pm-4:35 am

1 stop29h 20m

$1,072

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 8/28

2:35 am-8:47 pm

2 stops29h 12m

Washington, D.C. Reagan-National

Fri 9/5

9:40 am-9:45 pm

2 stops25h 05m

$1,089

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 59 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 round-trip 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, August is the cheapest month in which you can book a flight from Bangkok to Washington, D.C. (average of $241). Flying from Bangkok to Washington, D.C. in March is currently the most expensive (average of $290). 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 July 31, 2025.

It’s typically best to fly out from Bangkok to Washington, D.C. in the morning. Doing so could potentially save you 9% on the flight price compared to flying in the afternoon, which is usually more expensive.

How much does it cost to fly round-trip 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 July 31, 2025.
Read through reviews of airlines operating flights from Bangkok to Washington, D.C., such as EVA Air, Korean Air, and ANA. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,220 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,121 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.4
Very good
922 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Japan Airlines
8.3
Very good
1,536 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very good
754 reviews
EVA Air
8.4
Very good
1,220 reviews

Comfort

8.3

Boarding

8.4

Crew

8.6

Entertainment

8.0

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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.

  • What are the cheapest airlines flying from Bangkok to Washington, D.C. round-trip?

    Cheapflights users have booked flights from Bangkok to Washington, D.C. round-trip from $989. Other airlines that can offer you cheap pricing are IndiGo, from $1,001, and SAUDIA, from $1,008. Japan Airlines is priced at 17% lower than the current average price of a flight leaving 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 China Airlines, which is currently one of the cheapest options available, starting at $656. Delta flights start at $659 while deals on Air China start at $674 one-way.

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

    While some choose either Bangkok Suvarnabhumi - Baltimore/Washington or Bangkok Suvarnabhumi - Washington, D.C. Reagan-National, Bangkok Suvarnabhumi - Washington, D.C. Dulles Intl is the most popular route 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 vacation 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, August is the cheapest month in which you can book a flight from Bangkok to Washington, D.C. (average of $241). Flying from Bangkok to Washington, D.C. in March is currently the most expensive (average of $290). 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Easton
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Bowie

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.
Suvarnabhumi to Dulles Intl flights
Suvarnabhumi to Reagan-National flights
Chiang Mai to Dulles Intl flights
Chiang Mai to Reagan-National flights

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 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$983Average$1,144FlexibilityNo cancel feeOn-time69%
ANACheapest$1,003Average$1,171FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$1,043Average$1,172FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,158Average$1,339FlexibilityNo cancel feeOn-time68%
Turkish AirlinesCheapest$1,287Average$1,448FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$1,370Average$1,520FlexibilityNo cancel feeOn-time71%
EmiratesCheapest$1,371Average$1,523FlexibilityNo cancel feeOn-time75%

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