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

$651+ 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 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — DCA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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

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 June 12, 2025.

Round-trip from

$1,030
(United Airlines)

One-way from

$651
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$1,188
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. 10% potential increase in price ($146 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find 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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/10. 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 10/129:35 amBKK - DCA
2 stops62h 24mUnited Airlines
Tue 3/242:50 pmDCA - BKK
3 stops33h 00mUnited Airlines
Deal found 6/10$1,030
This Ovago deal was found by Cheapflights users on 6/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1110:05 pmBKK - DCA
2 stops36h 06mJapan Airlines
Fri 7/2510:08 pmDCA - BKK
2 stops30h 02mJapan Airlines
Deal found 6/11$1,086
This Delta deal was found by Cheapflights users on 6/10. 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.
Tue 11/189:40 amBKK - DCA
2 stops25h 51mDelta
Sat 11/296:00 amDCA - BKK
2 stops29h 20mDelta
Deal found 6/10$1,091
This Air Canada deal was found by Cheapflights users on 6/12. 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 11/188:35 amBKK - DCA
2 stops37h 44mAir Canada
Sat 11/296:00 amDCA - BKK
2 stops36h 15mAir Canada
Deal found 6/12$1,123
This oojo deal was found by Cheapflights users on 6/9. 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.
Tue 6/242:40 amBKK - DCA
2 stops54h 02mChina Airlines
Fri 1/169:30 amDCA - BKK
2 stops39h 35mChina Airlines
Deal found 6/9$1,227
This oojo deal was found by Cheapflights users on 6/11. 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.
Wed 7/231:35 amBKK - DCA
2 stops31h 07mEVA Air
Fri 7/256:58 pmDCA - BKK
2 stops29h 22mEVA Air
Deal found 6/11$1,237
This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/72:35 amBKK - DCA
2 stops30h 07mMultiple Airlines
Sat 8/238:20 amDCA - BKK
2 stops27h 40mMultiple Airlines
Deal found 6/11$1,530
This Cathay Pacific deal was found by Cheapflights users on 6/9. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/267:00 pmBKK - DCA
2 stops26h 43mCathay Pacific
Tue 1/135:11 pmDCA - BKK
2 stops32h 54mCathay Pacific
Deal found 6/9$2,703
This Singapore Airlines deal was found by Cheapflights users on 6/9. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/263:30 pmBKK - DCA
2 stops41h 12mSingapore Airlines
Fri 1/169:30 amDCA - BKK
2 stops43h 30mSingapore Airlines
Deal found 6/9$3,542
This ITA Airways deal was found by Cheapflights users on 6/12. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2812:05 pmBKK - DCA
2 stops46h 30mITA Airways
Sat 8/166:05 amDCA - BKK
2 stops38h 00mITA Airways
Deal found 6/12$3,757
This Finnair deal was found by Cheapflights users on 6/12. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/317:05 amBKK - DCA
2 stops27h 06mFinnair
Sun 8/178:00 amDCA - BKK
2 stops34h 30mFinnair
Deal found 6/12$4,798

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 June 12, 2025.
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

Sun 10/12

9:35 am-12:59 pm

2 stops62h 24m

Washington, D.C. Reagan-National

Tue 3/24

2:50 pm-10:50 am

3 stops33h 00m

$1,030

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 7/11

10:05 pm-11:11 pm

2 stops36h 06m

Washington, D.C. Reagan-National

Fri 7/25

10:08 pm-3:10 pm

2 stops30h 02m

$1,086

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 11/18

9:40 am-11:31 pm

2 stops25h 51m

Washington, D.C. Reagan-National

Sat 11/29

6:00 am-11:20 pm

2 stops29h 20m

$1,091

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 11/18

8:35 am-10:19 am

2 stops37h 44m

Washington, D.C. Reagan-National

Sat 11/29

6:00 am-6:15 am

2 stops36h 15m

$1,123

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 6/24

2:40 am-9:42 pm

2 stops54h 02m

Washington, D.C. Reagan-National

Fri 1/16

9:30 am-1:05 pm

2 stops39h 35m

$1,227

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 7/23

1:35 am-9:42 pm

2 stops31h 07m

Washington, D.C. Reagan-National

Fri 7/25

6:58 pm-11:20 am

2 stops29h 22m

$1,237

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 8/7

2:35 am-9:42 pm

2 stops30h 07m

Washington, D.C. Reagan-National

Sat 8/23

8:20 am-11:00 pm

2 stops27h 40m

$1,530

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 6/26

7:00 pm-10:43 am

2 stops26h 43m

Washington, D.C. Reagan-National

Tue 1/13

5:11 pm-2:05 pm

2 stops32h 54m

$2,703

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 6/26

3:30 pm-9:42 pm

2 stops41h 12m

Washington, D.C. Reagan-National

Fri 1/16

9:30 am-5:00 pm

2 stops43h 30m

$3,542

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 7/28

12:05 pm-11:35 pm

2 stops46h 30m

Washington, D.C. Reagan-National

Sat 8/16

6:05 am-7:05 am

2 stops38h 00m

$3,757

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 24 results
1
2
3

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.

Cheapflights Insights

Everything you need to know about your flight from Bangkok Suvarnabhumi Airport to Washington, D.C. Reagan-National Airport

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 2.6 in.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 June 12, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air and Japan Airlines from Bangkok to Washington, D.C.. 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.
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

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
1,202 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

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
1,088 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

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
1,490 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

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
738 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

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
Singapore Airlines
8.1
Very good
1,302 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

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 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.

  • What are the cheapest airlines flying 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 $1,030. Other airlines that can offer you cheap pricing are Japan Airlines, from $1,086, and Delta, from $1,091.

  • What are the cheapest airlines to fly from Bangkok Suvarnabhumi Airport to Washington, D.C. Reagan-National Airport one-way?

    $660 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on China Airlines and Air Canada, with prices starting from $666 and $700, respectively.

  • 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.

  • What is the cheapest month to book a flight from Bangkok Suvarnabhumi Airport to Washington, D.C. Reagan-National Airport?

    Currently, February is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to Washington, D.C. Reagan-National Airport (average of $278). Flying from Bangkok Suvarnabhumi Airport to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $337). 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 Bangkok Suvarnabhumi Airport?

Book flights to Bangkok Suvarnabhumi Airport if you plan to visit one of these locations
Arlington
Alexandria
Woodbridge
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Gaithersburg
Fairfax
Falls Church
Easton
Herndon
Towson
Bowie
Rockville
Reston
National Harbor
Springfield
Manassas
Dundalk

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
ANACheapest$1,404Average$1,404FlexibilityNo cancel feeOn-time80%

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.