HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Reagan-National

$645+ Cheap flights from Suvarnabhumi (BKK) to Reagan-National (DCA)

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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — DCA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Suvarnabhumi to Reagan-National 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 Suvarnabhumi to Reagan-National

Cheapest flights from Suvarnabhumi to Reagan-National
Explore the most affordable flight options available from Suvarnabhumi to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This SmartFares deal was found by Cheapflights users on 1/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/242:15 am
BKK
-
DCA
2 stops29h 50m
Multiple Airlines
Wed 3/49:59 am
DCA
-
BKK
2 stops37h 11m
Multiple Airlines
Deal found 1/28$983
This SmartFares deal was found by Cheapflights users on 1/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/281:35 am
BKK
-
DCA
2 stops29h 25m
Multiple Airlines
Wed 7/296:59 pm
DCA
-
BKK
2 stops29h 21m
Multiple Airlines
Deal found 1/28$1,003
This EaseMyTrip deal was found by Cheapflights users on 1/28. 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:15 pm
BKK
-
DCA
2 stops35h 44m
Multiple Airlines
Wed 4/299:59 am
DCA
-
BKK
2 stops37h 56m
Multiple Airlines
Deal found 1/28$1,041
This United Airlines deal was found by Cheapflights users on 1/29. 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 10/203:45 pm
BKK
-
DCA
3 stops30h 40m
United Airlines
Sun 10/258:30 am
DCA
-
BKK
2 stops33h 40m
United Airlines
Deal found 1/29$1,059
This oojo deal was found by Cheapflights users on 1/27. 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.
Mon 4/68:30 am
BKK
-
DCA
2 stops46h 30m
EVA Air
Fri 4/246:59 pm
DCA
-
BKK
2 stops28h 56m
EVA Air
Deal found 1/27$1,071
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:45 pm
BKK
-
DCA
3 stops36h 19m
United Airlines
Tue 7/2811:30 am
DCA
-
BKK
3 stops35h 05m
United Airlines
Deal found 1/28$1,076
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/293:45 pm
BKK
-
DCA
3 stops29h 14m
United Airlines
Wed 7/297:50 am
DCA
-
BKK
2 stops29h 05m
United Airlines
Deal found 1/28$1,080
This CheapTickets deal was found by Cheapflights users on 1/28. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/72:15 am
BKK
-
DCA
2 stops27h 41m
Multiple Airlines
Tue 2/179:59 am
DCA
-
BKK
2 stops36h 46m
Multiple Airlines
Deal found 1/28$1,132
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/87:10 am
BKK
-
DCA
2 stops26h 42m
United Airlines
Tue 2/173:30 pm
DCA
-
BKK
3 stops31h 55m
United Airlines
Deal found 1/28$1,133
This SmartFares deal was found by Cheapflights users on 1/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/132:15 am
BKK
-
DCA
2 stops28h 50m
Multiple Airlines
Sat 3/216:41 pm
DCA
-
BKK
2 stops29h 29m
Multiple Airlines
Deal found 1/28$1,137
This oojo deal was found by Cheapflights users on 1/27. 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.
Mon 4/203:10 pm
BKK
-
DCA
2 stops37h 31m
EVA Air
Mon 5/119:59 am
DCA
-
BKK
2 stops37h 56m
EVA Air
Deal found 1/27$1,142
This SmartFares deal was found by Cheapflights users on 1/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/62:15 am
BKK
-
DCA
2 stops27h 41m
Multiple Airlines
Sun 2/158:00 am
DCA
-
BKK
2 stops38h 45m
Multiple Airlines
Deal found 1/28$1,166

Find flight deals from Suvarnabhumi to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Suvarnabhumi (BKK) to Reagan-National (DCA). 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$983
(SmartFares)

One-way from

$645
(Kiwi.com)

Popular in

August

Cheapest in

October

Average price

$1,275
Provider with most accurate pricing for Bangkok Suvarnabhumi-Washington, D.C. Reagan-National flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bangkok Suvarnabhumi-Washington, D.C. Reagan-National flights.
Search Deals
From Bangkok Suvarnabhumi to Washington, D.C. Reagan-National
Search Deals
One-way flight from Bangkok Suvarnabhumi to Washington, D.C. Reagan-National
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Suvarnabhumi to Reagan-National 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 January 29, 2026.
Use the filters below to find and compare flights from Bangkok Suvarnabhumi Airport to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Suvarnabhumi

Fly to

Reagan-National

Route

Depart

Return

Price

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 3/2

2:15 am-8:05 pm

2 stops29h 50m

Washington, D.C. Reagan-National

Wed 3/4

9:59 am-11:10 am

2 stops37h 11m

$983

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 5/4

1:35 am-8:00 pm

2 stops29h 25m

Washington, D.C. Reagan-National

Tue 7/28

6:59 pm-10:50 am

2 stops28h 51m

$1,003

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 4/6

8:30 am-8:00 pm

2 stops46h 30m

Washington, D.C. Reagan-National

Fri 4/24

6:59 pm-10:55 am

2 stops28h 56m

$1,071

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 5/5

3:45 pm-5:04 pm

3 stops36h 19m

Washington, D.C. Reagan-National

Tue 7/28

11:30 am-9:35 am

3 stops35h 05m

$1,076

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 4/29

3:45 pm-9:59 am

3 stops29h 14m

Washington, D.C. Reagan-National

Wed 7/29

7:50 am-11:55 pm

2 stops29h 05m

$1,080

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 2/8

7:10 am-9:52 pm

2 stops26h 42m

Washington, D.C. Reagan-National

Tue 2/17

3:30 pm-11:25 am

3 stops31h 55m

$1,133

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 4/20

3:10 pm-5:41 pm

2 stops37h 31m

Washington, D.C. Reagan-National

Mon 5/11

9:59 am-10:55 am

2 stops37h 56m

$1,142

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 3/3

7:10 am-8:56 pm

2 stops25h 46m

Washington, D.C. Reagan-National

Wed 3/4

3:30 pm-11:25 am

3 stops31h 55m

$1,197

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 3/13

2:15 am-8:05 pm

2 stops28h 50m

Washington, D.C. Reagan-National

Sat 3/21

6:41 pm-11:10 am

2 stops29h 29m

$1,237

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sat 3/14

7:10 am-9:45 pm

2 stops25h 35m

Washington, D.C. Reagan-National

Sat 3/21

4:59 pm-11:25 am

3 stops31h 26m

$1,294

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 21 results
1
2
3
  • Most accurate provider: When it comes to deals on Bangkok Suvarnabhumi Airport-Washington, D.C. Reagan-National Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bangkok Suvarnabhumi Airport-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bangkok Suvarnabhumi Airport-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bangkok Suvarnabhumi Airport-Washington, D.C. Reagan-National Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bangkok Suvarnabhumi Airport-Washington, D.C. Reagan-National Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Suvarnabhumi to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Suvarnabhumi 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.

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated January 29, 2026.
Read reviews from past customers who have flown United Airlines from Bangkok Suvarnabhumi Airport to Washington, D.C. Reagan-National Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,215 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

Find useful and relevant information for your journey from Suvarnabhumi to Reagan-National. 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 Suvarnabhumi Airport to Washington, D.C. Reagan-National Airport?

    Departing from Bangkok Suvarnabhumi Airport to Washington, D.C. Reagan-National Airport will take you 36h 19m. Airlines will cover a distance of 8797 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Bangkok Suvarnabhumi Airport to Washington, D.C. Reagan-National Airport round-trip?

    Cheapflights users have booked flights from Bangkok Suvarnabhumi Airport to Washington, D.C. Reagan-National Airport round-trip from $1,038.

  • Can I find deals for flights from Suvarnabhumi to Reagan-National that include hotel bookings?

    Yes. In addition to deals on Suvarnabhumi to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Suvarnabhumi to Reagan-National?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Suvarnabhumi to Reagan-National.

  • Can I find deals for business class flights from Suvarnabhumi to Reagan-National?

    Yes. Cheapflights offers flight deals from Suvarnabhumi to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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 Suvarnabhumi to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.
Suvarnabhumi to Dulles Intl flights
Suvarnabhumi to Baltimore flights

Top airline flying from Suvarnabhumi to Reagan-National

Discover the top airline that operate flights from Suvarnabhumi to Reagan-National. 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,038Average$1,054FlexibilityNo cancel feeOn-time69%

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.