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$329+ 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LHR
אפר' 4 — אפר' 111
ש' 4/4
ש' 4/11
1 adult, Economy
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Cheap 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 מרץ 5, 2026.

This KAYAK deal was found by Cheapflights users on 3/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ב' 4/2711:00 am
DCA
-
LHR
2 stops41h 20m
Scandinavian Airlines
ה' 4/307:05 am
LHR
-
DCA
2 stops20h 36m
Scandinavian Airlines
Deal found 3/2$634
This Gotogate deal was found by Cheapflights users on 3/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ג' 3/2411:05 am
DCA
-
LHR
1 stop16h 05m
Air Canada
ג' 3/318:30 am
LHR
-
DCA
1 stop16h 23m
Air Canada
Deal found 3/1$644
This lol.travel deal was found by Cheapflights users on 3/1. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ד' 4/154:10 pm
DCA
-
LHR
1 stop12h 50m
Air Canada
ד' 4/229:30 am
LHR
-
DCA
1 stop11h 00m
Air Canada
Deal found 3/1$646
This JetBlue deal was found by Cheapflights users on 3/1. 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.
ג' 3/36:00 am
DCA
-
LHR
1 stop10h 40m
JetBlue
ו' 3/612:20 pm
LHR
-
DCA
1 stop15h 39m
JetBlue
Deal found 3/1$652
This Cheapflightsfares deal was found by Cheapflights users on 2/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ב' 3/22:05 pm
DCA
-
LHR
1 stop11h 50m
JetBlue
ג' 3/109:20 am
LHR
-
DCA
1 stop16h 00m
JetBlue
Deal found 2/28$655
This Air Canada deal was found by Cheapflights users on 2/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ד' 4/2212:55 pm
DCA
-
LHR
1 stop14h 40m
Air Canada
ג' 5/196:50 am
LHR
-
DCA
2 stops13h 49m
Air Canada
Deal found 2/28$656
This Delta deal was found by Cheapflights users on 2/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ב' 3/165:30 pm
DCA
-
LHR
2 stops12h 45m
Delta
ד' 3/2511:45 am
LHR
-
DCA
2 stops15h 59m
Delta
Deal found 2/28$657
This KAYAK deal was found by Cheapflights users on 2/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ג' 3/103:40 pm
DCA
-
LHR
1 stop11h 15m
JetBlue
ג' 3/1712:20 pm
LHR
-
DCA
1 stop14h 39m
JetBlue
Deal found 2/28$658
This Air Canada deal was found by Cheapflights users on 3/1. 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.
ד' 11/1112:55 pm
DCA
-
LHR
2 stops13h 15m
Air Canada
ד' 11/256:50 am
LHR
-
DCA
2 stops13h 31m
Air Canada
Deal found 3/1$659
This FlightHub deal was found by Cheapflights users on 2/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ג' 3/32:05 pm
DCA
-
LHR
1 stop11h 50m
JetBlue
ג' 3/109:20 am
LHR
-
DCA
1 stop16h 00m
JetBlue
Deal found 2/28$660
This Air Canada deal was found by Cheapflights users on 3/1. 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.
ד' 3/1812:55 pm
DCA
-
LHR
1 stop16h 25m
Multiple Airlines
ד' 4/226:55 am
LHR
-
DCA
2 stops16h 08m
Multiple Airlines
Deal found 3/1$661

Find 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 מרץ 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$634
(KAYAK)

One-way from

$329
(Super.com)

Popular in

June

Cheapest in

October

Average price

$766
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. 10% potential increase in price ($95 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 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 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 מרץ 5, 2026.
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

Fly to

Route

Depart

Return

Price

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

ב' 4/27

11:00 am-9:35 am

2 stops17h 35m

London Heathrow

ב' 5/11

7:05 am-11:24 pm

2 stops21h 19m

$694

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

ש' 4/18

6:00 am-8:45 pm

1 stop9h 45m

London Heathrow

ש' 4/25

11:55 am-10:59 pm

1 stop16h 04m

$695

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

ה' 4/30

12:00 pm-6:30 am

1 stop13h 30m

London Heathrow

ד' 5/6

8:40 am-3:42 pm

1 stop12h 02m

$711

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

ב' 3/30

2:40 pm-10:20 am

2 stops14h 40m

London Heathrow

ב' 4/6

6:30 am-5:49 pm

2 stops16h 19m

$722

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

ב' 5/4

5:31 pm-9:40 pm

1 stop23h 09m

London Heathrow

ב' 5/11

2:10 pm-10:29 pm

1 stop13h 19m

$744

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

ד' 5/6

11:00 am-9:35 am

2 stops17h 35m

London Heathrow

ג' 5/12

7:05 am-11:24 pm

2 stops21h 19m

$753

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

ו' 3/20

12:55 pm-9:20 am

1 stop16h 25m

London Heathrow

ד' 3/25

12:00 pm-7:35 pm

1 stop11h 35m

$773

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

ש' 5/16

7:00 am-9:35 pm

1 stop9h 35m

London Heathrow

ו' 5/22

9:30 am-3:39 pm

1 stop11h 09m

$787

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

ב' 5/4

3:15 pm-6:45 am

1 stop10h 30m

London Heathrow

ב' 5/11

11:20 am-5:07 pm

1 stop10h 47m

$795

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

ב' 4/13

11:00 am-6:30 am

1 stop14h 30m

London Heathrow

ש' 4/18

11:55 am-10:59 pm

1 stop16h 04m

$801

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/4

Showing 1-10 of 22 resultsSorted by cheapest first
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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
Trip.comPrice Accuracy1 starTrust 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.

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 February 27, 2026.

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 $113). Flying from Washington, D.C. Reagan-National Airport to London Heathrow Airport in June is currently the most expensive (average of $829). 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 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 מרץ 5, 2026.
Read reviews from past customers who have flown Virgin Atlantic, United Airlines, and American Airlines 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.
Virgin Atlantic
7.5
Good
680 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.6

Overall

7.5

Crew

8.2

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
680 reviews
Virgin Atlantic
7.5
Good
680 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.6

Overall

7.5

Crew

8.2

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
United Airlines
7.4
Good
9,389 reviews
Virgin Atlantic
7.5
Good
680 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.6

Overall

7.5

Crew

8.2

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
American Airlines
7.2
Good
11,381 reviews
Virgin Atlantic
7.5
Good
680 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.6

Overall

7.5

Crew

8.2

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
JetBlue
7.2
Good
2,897 reviews
Virgin Atlantic
7.5
Good
680 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.6

Overall

7.5

Crew

8.2

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,775 reviews
Virgin Atlantic
7.5
Good
680 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.6

Overall

7.5

Crew

8.2

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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 $695, Scandinavian Airlines can have you in London Heathrow Airport from Washington, D.C. Reagan-National Airport in 9h 45m. 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 96% 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 $113). Flying from Washington, D.C. Reagan-National Airport to London Heathrow Airport in June is currently the most expensive (average of $829). 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
Ilford
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Northampton
Borehamwood
Broadway
Aylesbury
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

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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 מרץ 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$31Average$822FlexibilityNo cancel feeOn-time62%
Virgin AtlanticCheapest$497Average$835FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$497Average$863FlexibilityNo cancel feeOn-time71%
IberiaCheapest$527Average$695FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$529Average$724FlexibilityNo cancel feeOn-time70%
DeltaCheapest$558Average$832FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$577Average$758FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$598Average$779FlexibilityNo cancel feeOn-time69%

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