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$299+ 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LHR
Dec 17 — Dec 241
Wed 12/17
Wed 12/24
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to London Heathrow are usually found in January or October, booked 44 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 November 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$577
(FlightHub)

One-way from

$299
(JetBlue)

Popular in

June

Cheapest in

January

Average price

$647
Provider with most accurate pricing for Washington, D.C. Reagan-National-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-London Heathrow flights.
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From Washington, D.C. Reagan-National to London Heathrow
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One-way flight from Washington, D.C. Reagan-National to London Heathrow
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Highest demand for flights based on searches. 15% potential increase in price ($134 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 17, 2025.

This lastminute.com deal was found by Cheapflights users on 11/16. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/172:59 pmDCA - LHR
1 stop10h 51mVirgin Atlantic
Tue 11/259:40 amLHR - DCA
1 stop11h 19mVirgin Atlantic
Deal found 11/16$582
This KLM deal was found by Cheapflights users on 11/16. 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.
Mon 11/175:03 pmDCA - LHR
1 stop10h 02mKLM
Tue 11/254:35 pmLHR - DCA
1 stop11h 21mKLM
Deal found 11/16$588
This Delta deal was found by Cheapflights users on 11/16. 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 12/96:07 amDCA - LHR
1 stop9h 03mDelta
Thu 12/256:20 amLHR - DCA
2 stops15h 20mDelta
Deal found 11/16$590
This Delta deal was found by Cheapflights users on 11/16. 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 11/251:15 pmDCA - LHR
1 stop12h 35mDelta
Tue 12/211:45 amLHR - DCA
2 stops16h 12mDelta
Deal found 11/16$591
This lastminute.com deal was found by Cheapflights users on 11/17. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/242:59 pmDCA - LHR
1 stop11h 51mVirgin Atlantic
Tue 12/29:40 amLHR - DCA
1 stop11h 19mVirgin Atlantic
Deal found 11/17$593
This Mytrip deal was found by Cheapflights users on 11/15. 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.
Mon 12/112:55 pmDCA - LHR
2 stops50h 40mMultiple Airlines
Thu 12/116:00 amLHR - DCA
2 stops18h 45mMultiple Airlines
Deal found 11/15$594
This KLM deal was found by Cheapflights users on 11/17. 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.
Tue 12/95:31 pmDCA - LHR
1 stop10h 14mKLM
Fri 1/98:55 amLHR - DCA
1 stop12h 34mKLM
Deal found 11/17$595
This KLM deal was found by Cheapflights users on 11/14. 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.
Tue 12/95:31 pmDCA - LHR
1 stop10h 14mKLM
Thu 12/184:35 pmLHR - DCA
1 stop11h 22mKLM
Deal found 11/14$596
This Delta deal was found by Cheapflights users on 11/17. 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 11/264:40 pmDCA - LHR
1 stop13h 45mDelta
Tue 12/29:40 amLHR - DCA
1 stop12h 25mDelta
Deal found 11/17$597
This Kissandfly.com deal was found by Cheapflights users on 11/15. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/164:40 pmDCA - LHR
1 stop10h 10mVirgin Atlantic
Tue 11/259:40 amLHR - DCA
1 stop11h 19mVirgin Atlantic
Deal found 11/15$599
This Air Canada deal was found by Cheapflights users on 11/16. 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.
Wed 12/3111:05 amDCA - LHR
1 stop15h 05mAir Canada
Wed 1/146:50 amLHR - DCA
2 stops13h 41mAir Canada
Deal found 11/16$603
This Ovago deal was found by Cheapflights users on 11/16. 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.
Tue 11/187:44 pmDCA - LHR
1 stop11h 16mBritish Airways
Wed 11/269:55 amLHR - DCA
1 stop12h 48mBritish Airways
Deal found 11/16$609

Cheapflights Fare Finder

 
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 November 17, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport that are best for you.

Fly from

Reagan-National

Fly to

Heathrow

Route

Depart

Return

Price

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Tue 12/9

5:31 pm-8:45 am

1 stop10h 14m

London Heathrow

Fri 1/9

8:55 am-4:29 pm

1 stop12h 34m

$595

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 11/26

10:30 am-6:50 am

1 stop15h 20m

London Heathrow

Tue 12/2

10:10 am-5:59 pm

1 stop12h 49m

$597

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Tue 12/9

5:02 pm-8:05 am

1 stop10h 03m

London Heathrow

Thu 12/18

4:35 pm-10:57 pm

1 stop11h 22m

$597

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 12/10

6:45 pm-11:25 am

1 stop11h 40m

London Heathrow

Thu 12/25

12:30 pm-8:32 pm

1 stop13h 02m

$597

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Mon 12/8

2:55 pm-7:50 am

1 stop11h 55m

London Heathrow

Wed 12/24

1:00 pm-10:50 pm

1 stop14h 50m

$597

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Tue 12/2

5:02 pm-8:05 am

1 stop10h 03m

London Heathrow

Wed 12/10

4:35 pm-10:57 pm

1 stop11h 22m

$597

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Mon 11/24

4:40 pm-7:50 am

1 stop10h 10m

London Heathrow

Wed 12/3

1:05 pm-7:46 pm

1 stop11h 41m

$597

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 11/26

6:45 pm-11:25 am

1 stop11h 40m

London Heathrow

Fri 12/5

4:35 pm-10:57 pm

1 stop11h 22m

$597

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 11/26

2:59 pm-6:50 am

1 stop10h 51m

London Heathrow

Thu 12/4

1:05 pm-7:46 pm

1 stop11h 41m

$597

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Thu 1/29

11:10 am-5:40 pm

2 stops25h 30m

London Heathrow

Wed 2/4

6:40 am-10:48 pm

2 stops21h 08m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

Showing 1-10 of 23 results
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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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Trip.comPrice Accuracy2 starsTrust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Reagan-National Airport-London Heathrow Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Cheapflights Insights

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

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 November 14, 2025.

The best time to book flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport is 44 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, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to London Heathrow Airport (average of $31). Flying from Washington, D.C. Reagan-National Airport to London Heathrow Airport in June is currently the most expensive (average of $838). 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 November 17, 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 17% on the cost of your flight, compared to a flight at noon.

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 November 17, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and JetBlue from Washington, D.C. Reagan-National Airport to London Heathrow 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
9,014 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,014 reviews
United Airlines
7.4
Good
9,014 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,049 reviews
United Airlines
7.4
Good
9,014 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
JetBlue
7.2
Good
2,905 reviews
United Airlines
7.4
Good
9,014 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Air Canada
7.1
Good
10,459 reviews
United Airlines
7.4
Good
9,014 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
British Airways
6.7
Okay
7,528 reviews
United Airlines
7.4
Good
9,014 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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.

  • How long is the flight from Washington, D.C. Reagan-National Airport to London Heathrow Airport?

    For as low as $595, KLM can have you in London Heathrow Airport from Washington, D.C. Reagan-National Airport in 10h 14m. The distance from Washington, D.C. Reagan-National Airport to London Heathrow Airport is about 3652 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 ($31), American Airlines ($497), and Virgin Atlantic ($497) offers the cheapest pricing from Washington, D.C. Reagan-National Airport to London Heathrow Airport. JetBlue is currently priced 95% below the average price you’ll pay for this route.

  • 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, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to London Heathrow Airport (average of $31). Flying from Washington, D.C. Reagan-National Airport to London Heathrow Airport in June is currently the most expensive (average of $838). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

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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 November 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$31Average$799FlexibilityNo cancel feeOn-time62%
Virgin AtlanticCheapest$497Average$949FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$497Average$909FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$529Average$753FlexibilityNo cancel feeOn-time70%
DeltaCheapest$558Average$750FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$562Average$686FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$598Average$790FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$632Average$698FlexibilityNo cancel feeOn-time67%

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