HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$570+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bangkok to Washington, D.C. with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 March 24, 2026.

This United Airlines deal was found by Cheapflights users on 3/22. 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.
Thu 8/279:35 am
BKK
-
IAD
1 stop41h 15m
United Airlines
Thu 9/106:15 am
IAD
-
BKK
2 stops30h 40m
United Airlines
Deal found 3/22$795
This United Airlines deal was found by Cheapflights users on 3/21. 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 6/269:35 am
BKK
-
IAD
2 stops48h 44m
United Airlines
Fri 8/286:30 am
IAD
-
BKK
2 stops35h 05m
United Airlines
Deal found 3/21$797
This United Airlines deal was found by Cheapflights users on 3/22. 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.
Wed 9/29:35 am
BKK
-
DCA
2 stops46h 08m
United Airlines
Sun 9/68:30 am
DCA
-
BKK
2 stops28h 25m
United Airlines
Deal found 3/22$800
This United Airlines deal was found by Cheapflights users on 3/22. 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.
Thu 9/247:00 am
BKK
-
IAD
2 stops24h 33m
United Airlines
Mon 9/285:30 pm
IAD
-
BKK
2 stops29h 05m
United Airlines
Deal found 3/22$800
This United Airlines deal was found by Cheapflights users on 3/23. 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.
Tue 9/83:45 pm
BKK
-
IAD
3 stops30h 41m
United Airlines
Thu 9/178:30 pm
IAD
-
BKK
2 stops26h 05m
United Airlines
Deal found 3/23$808
This AIR PREMIA deal was found by Cheapflights users on 3/23. 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 PREMIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:45 pm
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Wed 6/31:20 pm
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Deal found 3/23$905
This Vliegwinkel deal was found by Cheapflights users on 3/23. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:35 pm
BKK
-
IAD
1 stop34h 55m
Multiple Airlines
Fri 5/291:20 pm
IAD
-
BKK
1 stop44h 50m
Multiple Airlines
Deal found 3/23$906
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2810:45 pm
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Sun 7/191:20 pm
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Deal found 3/20$931
This SmartFares deal was found by Cheapflights users on 3/23. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:45 pm
BKK
-
BWI
2 stops24h 36m
Multiple Airlines
Sun 10/186:11 pm
BWI
-
BKK
2 stops29h 14m
Multiple Airlines
Deal found 3/23$1,006
This United Airlines deal was found by Cheapflights users on 3/23. 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.
Wed 10/77:00 am
BKK
-
DCA
2 stops25h 53m
United Airlines
Sun 10/187:30 am
DCA
-
BKK
2 stops34h 05m
United Airlines
Deal found 3/23$1,008
This Delta deal was found by Cheapflights users on 3/23. 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.
Wed 6/39:50 am
BKK
-
DCA
2 stops24h 38m
Delta
Thu 8/206:00 am
DCA
-
BKK
2 stops28h 45m
Delta
Deal found 3/23$1,012
This Delta deal was found by Cheapflights users on 3/21. 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.
Sun 5/179:50 am
BKK
-
DCA
2 stops24h 38m
Delta
Wed 8/127:30 pm
DCA
-
BKK
2 stops39h 15m
Delta
Deal found 3/21$1,015

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 March 24, 2026.

Round-trip from

$795
(United Airlines)

One-way from

$570
(Kiwi.com)

Popular in

August

Cheapest in

October

Average price

$1,399
From Bangkok to Washington, D.C. (WAS)
Search Deals
One-way flight from Bangkok to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 24, 2026.
Use the filters below to find and compare flights from Bangkok to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 9/2

9:35 am-8:43 pm

2 stops46h 08m

Washington, D.C. Reagan-National

Sun 9/6

8:30 am-11:55 pm

2 stops28h 25m

$800

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 5/12

10:45 pm-10:50 am

1 stop23h 05m

Washington, D.C. Dulles Intl

Wed 6/3

1:20 pm-9:10 pm

1 stop44h 50m

$913

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 6/18

9:35 am-4:26 pm

2 stops41h 51m

Washington, D.C. Dulles Intl

Mon 7/20

6:33 am-4:35 am

2 stops35h 02m

$997

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 5/6

9:40 pm-11:32 pm

2 stops36h 52m

Washington, D.C. Dulles Intl

Wed 5/13

7:00 am-11:35 pm

2 stops29h 35m

$1,108

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 6/14

2:35 am-12:25 am

2 stops32h 50m

Washington, D.C. Dulles Intl

Tue 7/14

1:30 pm-1:05 am

1 stop24h 35m

$1,112

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Fri 4/24

8:50 pm-3:45 pm

2 stops29h 55m

Washington, D.C. Dulles Intl

Mon 5/4

3:10 pm-4:40 am

2 stops26h 30m

$1,195
Quickest round-trip

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 6/1

9:50 am-12:13 am

2 stops25h 23m

Washington, D.C. Dulles Intl

Tue 6/30

7:00 am-9:45 pm

2 stops27h 45m

$1,218

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sat 5/23

6:45 am-11:35 am

1 stop39h 50m

Washington, D.C. Dulles Intl

Sun 6/7

1:20 pm-9:45 am

1 stop33h 25m

$1,233

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 8/3

9:35 am-7:22 am

2 stops32h 47m

Washington, D.C. Dulles Intl

Tue 11/3

8:15 am-12:20 am

2 stops28h 05m

$1,256

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Wed 5/6

10:50 am-5:40 am

2 stops29h 50m

Baltimore/Washington

Wed 5/13

1:45 pm-9:45 am

2 stops33h 00m

$1,262

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/21

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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, May is the cheapest month in which you can book a flight from Bangkok to Washington, D.C. (average of $956). Flying from Bangkok to Washington, D.C. in January is currently the most expensive (average of $1,137). 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 March 24, 2026.
Read through reviews of airlines operating flights from Bangkok to Washington, D.C., such as ANA,Qatar Airways, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
1,142 reviews

Overall

8.4

Boarding

8.6

Comfort

8.2

Food

7.8

Crew

8.7

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!
ANA
8.4
Very good
1,142 reviews
ANA
8.4
Very good
1,142 reviews

Overall

8.4

Boarding

8.6

Comfort

8.2

Food

7.8

Crew

8.7

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!
Qatar Airways
7.4
Good
3,732 reviews
ANA
8.4
Very good
1,142 reviews

Overall

8.4

Boarding

8.6

Comfort

8.2

Food

7.8

Crew

8.7

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!
United Airlines
7.4
Good
9,476 reviews
ANA
8.4
Very good
1,142 reviews

Overall

8.4

Boarding

8.6

Comfort

8.2

Food

7.8

Crew

8.7

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!

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.?

    Departing from Bangkok to Washington, D.C. will take you 23h 05m. The distance from Bangkok to Washington, D.C. is about 8792 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $1,040. Other airlines that can offer you cheap pricing are Korean Air, from $1,065, and Delta, from $1,078. United Airlines is priced at 11% 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 IndiGo, which is currently one of the cheapest options available, starting at $471. Air China flights start at $483 while deals on SAUDIA start at $484 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, May is the cheapest month in which you can book a flight from Bangkok to Washington, D.C. (average of $956). Flying from Bangkok to Washington, D.C. in January is currently the most expensive (average of $1,137). 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
Alexandria
Woodbridge
Tysons
Owings Mills
Arlington
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park
Cordova

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

Top 5 airlines flying from Bangkok to Washington, D.C.

Discover the top 5 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 March 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,040Average$1,137FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$1,065Average$1,172FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,078Average$1,295FlexibilityNo cancel feeOn-timeN/A
ANACheapest$1,109Average$1,340FlexibilityNo cancel feeOn-time80%
Qatar AirwaysCheapest$1,142Average$1,177FlexibilityNo cancel feeOn-time68%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.