HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$252+ Cheap flights from Reagan-National (DCA) to Heathrow (LHR)

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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LHR
ene. 28 — feb. 41
mar. 1/28
mar. 2/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Heathrow 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.

The best prices from Washington, D.C. Reagan-National to London Heathrow are usually found in January or October, booked 45 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from Reagan-National to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Heathrow (LHR). 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 enero 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$573
(JetBlue)

One-way from

$252
(Expedia)

Popular in

June

Cheapest in

January

Average price

$630
Provider with most accurate pricing for Washington, D.C. Reagan-National-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-London Heathrow flights.
Search Deals
From Washington, D.C. Reagan-National to London Heathrow
Search Deals
One-way flight from Washington, D.C. Reagan-National to London Heathrow
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($135 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find flight deals from Reagan-National to Heathrow

Cheapest flights from Reagan-National to Heathrow
Explore the most affordable flight options available from Reagan-National to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 23, 2025.

This JetBlue deal was found by Cheapflights users on 1/22. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 2/27:00 amDCA - LHR
1 stop17h 55mJetBlue
mar. 2/118:25 amLHR - DCA
1 stop13h 35mJetBlue
Deal found 1/22$573
This Iberia deal was found by Cheapflights users on 1/21. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 1/295:49 pmDCA - LHR
1 stop9h 46mIberia
mié. 2/59:15 amLHR - DCA
2 stops18h 26mIberia
Deal found 1/21$605
This Air Canada deal was found by Cheapflights users on 1/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 2/24:10 pmDCA - LHR
1 stop10h 00mAir Canada
mié. 2/196:50 amLHR - DCA
2 stops13h 39mAir Canada
Deal found 1/21$615
This Air Canada deal was found by Cheapflights users on 1/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/1211:00 amDCA - LHR
1 stop15h 10mMultiple Airlines
mar. 11/257:40 amLHR - DCA
2 stops15h 27mMultiple Airlines
Deal found 1/22$621
This Delta deal was found by Cheapflights users on 1/23. 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.
lun. 2/247:59 amDCA - LHR
1 stop17h 21mDelta
mar. 3/116:30 amLHR - DCA
2 stops15h 30mDelta
Deal found 1/23$628
This United Airlines deal was found by Cheapflights users on 1/22. 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.
mié. 4/234:10 pmDCA - LHR
1 stop12h 50mUnited Airlines
mar. 4/299:30 amLHR - DCA
1 stop10h 54mUnited Airlines
Deal found 1/22$629
This StudentUniverse deal was found by Cheapflights users on 1/22. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/47:05 pmDCA - LHR
2 stops20h 35mFinnair
mié. 3/129:35 amLHR - DCA
1 stop17h 25mFinnair
Deal found 1/22$638
This KLM deal was found by Cheapflights users on 1/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/34:25 pmDCA - LHR
1 stop10h 30mKLM
mié. 2/1912:20 pmLHR - DCA
1 stop12h 40mKLM
Deal found 1/21$640
This oojo deal was found by Cheapflights users on 1/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/110:15 pmDCA - LHR
1 stop30h 05mBritish Airways
mié. 3/51:10 pmLHR - DCA
1 stop12h 10mBritish Airways
Deal found 1/22$645
This Air France deal was found by Cheapflights users on 1/22. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/274:25 pmDCA - LHR
1 stop11h 30mAir France
jue. 4/1011:00 amLHR - DCA
1 stop12h 09mAir France
Deal found 1/22$693

Find flights from Reagan-National to Heathrow within your budget

Customize your flight search to find flights from Reagan-National to Heathrow 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 enero 23, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

dom. 2/2

7:00 am-5:55 am

1 stop17h 55m

London Heathrow

mar. 2/11

8:25 am-5:00 pm

1 stop13h 35m

$573

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

mar. 3/11

12:37 pm-6:50 am

1 stop14h 13m

London Heathrow

mié. 3/19

7:25 am-7:13 pm

2 stops15h 48m

$606

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

dom. 2/2

4:10 pm-7:10 am

1 stop10h 00m

London Heathrow

mié. 2/19

6:50 am-3:29 pm

2 stops13h 39m

$615

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

mar. 2/25

11:10 am-7:10 am

1 stop15h 00m

London Heathrow

mar. 3/11

6:30 am-6:07 pm

2 stops15h 37m

$621

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

lun. 2/24

7:59 am-6:20 am

1 stop17h 21m

London Heathrow

mar. 3/11

6:30 am-6:00 pm

2 stops15h 30m

$628

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

mié. 4/23

4:10 pm-10:00 am

1 stop12h 50m

London Heathrow

mar. 4/29

9:30 am-3:24 pm

1 stop10h 54m

$629

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

mar. 3/4

7:05 pm-8:40 pm

2 stops20h 35m

London Heathrow

mié. 3/12

9:35 am-11:00 pm

1 stop17h 25m

$638

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

mar. 2/11

6:50 am-10:10 pm

1 stop10h 20m

London Heathrow

mié. 2/19

8:40 am-4:26 pm

1 stop12h 46m

$639

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

lun. 2/3

4:25 pm-7:55 am

1 stop10h 30m

London Heathrow

mié. 2/19

12:20 pm-8:00 pm

1 stop12h 40m

$640

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

jue. 3/27

4:25 pm-7:55 am

1 stop11h 30m

London Heathrow

jue. 4/10

11:00 am-6:09 pm

1 stop12h 09m

$693

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

Showing 1-10 of 23 results
1
2
3

Compare providers for flights from Reagan-National to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Heathrow in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightsMojoPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-London Heathrow 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 Washington, D.C. Reagan-National Airport-London Heathrow 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 Reagan-National to Heathrow

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

Travel insights for flights from Reagan-National to Heathrow

Get recent, data-driven insights about flights from Reagan-National to Heathrow including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Washington, D.C. Reagan-National Airport to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Reagan-National to Heathrow. Price data was last updated on January 17, 2025.

The best time to book flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport is 45 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to London Heathrow Airport (average of $661). Flying from Washington, D.C. Reagan-National Airport to London Heathrow Airport in June 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.

What is the cheapest time of day to fly from DCA to LHR?

Find hourly flight availability from Reagan-National to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 23, 2025.

It’s optimal to fly from Washington, D.C. Reagan-National Airport to London Heathrow Airport in the afternoon. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight at noon.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated enero 23, 2025.
Peruse reviews from past customers who have flown with Iberia, Delta and United Airlines from Washington, D.C. to London to help guide your decision. 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.
Delta
8.0
Very good
8,512 reviews

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,512 reviews
Delta
8.0
Very good
8,512 reviews

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,338 reviews
Delta
8.0
Very good
8,512 reviews

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

LOT
7.6
Good
1,111 reviews
Delta
8.0
Very good
8,512 reviews

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,286 reviews
Delta
8.0
Very good
8,512 reviews

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
663 reviews
Delta
8.0
Very good
8,512 reviews

Entertainment

7.9

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

    According to our current data, JetBlue ($573), Iberia ($606), and Air Canada ($615) offers the cheapest pricing from Washington, D.C. Reagan-National Airport to London Heathrow Airport. JetBlue is currently priced 27% below the average price you’ll pay for this route.

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

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $252. Users have also found prices from $383 and $389 on Air Canada and British Airways, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Reagan-National to Heathrow 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 Washington, D.C. Reagan-National Airport to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to London Heathrow Airport (average of $661). Flying from Washington, D.C. Reagan-National Airport to London Heathrow Airport in June 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. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Harrow
Luton
Wembley
Canterbury
Northampton
Gatwick
Horley
Milton Keynes
Dover
Orpington
Watford
Stratford-upon-Avon
Croydon
Borehamwood
Bromley
Folkestone
Ilford

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.

Top 8 airlines flying from Reagan-National to Heathrow

Discover the top 8 airlines that operate flights from Reagan-National to Heathrow. 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 enero 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$542Average$953FlexibilityNo cancel feeOn-time77%
DeltaCheapest$548Average$866FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$583Average$678FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$600Average$801FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$602Average$715FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$633Average$771FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$650Average$778FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$652Average$936FlexibilityNo cancel feeOn-time71%
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.