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$328+ Cheap flights from Reagan-National (DCA) to London (LON)

DCA — LON
Oct 12 — Oct 191
Mon 10/12
Mon 10/19
1 adult, Economy
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Cheap flight deals from Reagan-National to London

Cheapest flights from Reagan-National to London

Tue 9/299:40 am -
2 stops25h 20m
Mon 10/58:45 pm -
3 stops30h 49m
Deal found 9/12$549
Sun 9/206:19 pm -
1 stop11h 31m
Tue 9/292:10 pm -
1 stop14h 00m
Deal found 9/9$682
Tue 11/34:00 pm -
2 stops15h 05m
Sun 11/87:45 am -
2 stops19h 14m
Deal found 9/9$686
Tue 12/14:00 pm -
2 stops22h 45m
Thu 12/106:10 pm -
3 stops26h 14m
Deal found 9/11$692
Wed 11/2511:05 am -
2 stops28h 45m
Sun 11/299:30 pm -
3 stops22h 54m
Deal found 9/11$693
Thu 10/812:50 pm -
1 stop12h 40m
Thu 12/311:10 am -
1 stop12h 08m
Deal found 9/8$695
Thu 11/266:59 am -
2 stops31h 31m
Wed 12/212:15 pm -
2 stops15h 23m
Deal found 9/9$700
Mon 10/1910:59 am -
1 stop14h 51m
Tue 11/311:15 am -
1 stop32h 00m
Deal found 9/10$700
Thu 11/266:59 am -
2 stops31h 31m
Mon 11/308:35 pm -
2 stops31h 03m
Deal found 9/8$704
Sat 11/286:59 am -
2 stops22h 51m
Wed 12/212:15 pm -
2 stops15h 23m
Deal found 9/12$705
Tue 9/294:20 pm -
1 stop12h 40m
Tue 11/31:00 pm -
1 stop26h 29m
Deal found 9/10$708
Wed 9/3010:19 am -
1 stop17h 16m
Wed 10/712:20 pm -
1 stop14h 10m
Deal found 9/10$708

Find flight deals from Reagan-National to London

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$549
(Mytrip)

One-way from

$328
(FlightHub)

Popular in

June

Cheapest in

January

Average price

$878
Provider with most accurate pricing for Washington, D.C. Reagan-National-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-London (LON) flights.
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From Washington, D.C. Reagan-National to London (LON)
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One-way flight from Washington, D.C. Reagan-National to London (LON)
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Highest demand for flights based on searches. 16% potential increase in price ($188 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Wed 10/7

6:30 am-8:45 pm

1 stop9h 15m

London Heathrow

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$329

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Sun 11/29

6:00 am-8:55 pm

1 stop9h 55m

London Heathrow

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$329

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Fri 11/27

11:00 am-6:55 am

1 stop14h 55m

London Heathrow

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$329

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Thu 11/26

6:00 am-9:40 pm

1 stop10h 40m

London Heathrow

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$329

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Tue 10/27

3:54 pm-6:55 am

1 stop11h 01m

London Heathrow

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$329

Washington, D.C.London

DCA Washington, D.C. Reagan-National - STN London Stansted

DCASTN

Washington, D.C. Reagan-National

Thu 10/22

8:40 pm-2:35 pm

2 stops12h 55m

London Stansted

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$341

Washington, D.C.London

DCA Washington, D.C. Reagan-National - STN London Stansted

DCASTN

Washington, D.C. Reagan-National

Wed 10/14

6:55 pm-4:45 pm

2 stops16h 50m

London Stansted

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$351

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LTN London Luton

DCALTN

Washington, D.C. Reagan-National

Mon 9/28

6:55 pm-3:45 pm

2 stops15h 50m

London Luton

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$354

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Tue 9/22

6:30 am-8:45 pm

1 stop9h 15m

London Heathrow

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$359

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Fri 10/2

6:30 am-8:45 pm

1 stop9h 15m

London Heathrow

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$359

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from Reagan-National to London

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to London in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 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 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 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 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 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 London

Have a flexible travel schedule? Discover the best time to fly to London from Reagan-National with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

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

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to London (average of $647). Flying from Washington, D.C. Reagan-National Airport to London in June is currently the most expensive (average of $1,407). 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.

How much does it cost to fly round-trip from Washington, D.C. Reagan-National Airport to London?

Airfare is below average for this route at the moment.
Washington, D.C. Reagan-National Airport to London flights typically cost between $756 and $892 in September.
The cheapest round-trip price found within the last 5 days was $549 on Multiple Airlines (Sep 29-Oct 5).

What’s the top layover airport for flights from Washington, D.C. Reagan-National Airport to London?

New York (JFK) – chosen by Cheapflights users on 90% of 1-stop itineraries from Washington, D.C. Reagan-National Airport to London on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. Reagan-National Airport to London?

Boston (BOS) is the most affordable 1-stop option, with an average round-trip price of $677.

What’s the fastest layover option from Washington, D.C. Reagan-National Airport to London?

Flights via Newark (EWR) have the shortest average one-way travel time for 1-stop routes: 9h 35m.

Which airport typically offers the quickest layover for flights from Washington, D.C. Reagan-National Airport to London?

Flights via Newark (EWR) offer the fastest connection on this route, with an average layover time of 1h 46m.

Reviews of airlines servicing London

Peruse reviews from past customers who have flown with Virgin Atlantic,American Airlines, andJetBlue from Washington, D.C. Reagan-National Airport to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.4
Good
694 reviews

Boarding

7.7

Food

6.9

Comfort

7.3

Crew

8.1

Entertainment

7.5

Overall

7.4

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
7.4
Good
694 reviews
Virgin Atlantic
7.4
Good
694 reviews

Boarding

7.7

Food

6.9

Comfort

7.3

Crew

8.1

Entertainment

7.5

Overall

7.4

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
7.1
Good
12,050 reviews
Virgin Atlantic
7.4
Good
694 reviews

Boarding

7.7

Food

6.9

Comfort

7.3

Crew

8.1

Entertainment

7.5

Overall

7.4

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
7.1
Good
3,037 reviews
Virgin Atlantic
7.4
Good
694 reviews

Boarding

7.7

Food

6.9

Comfort

7.3

Crew

8.1

Entertainment

7.5

Overall

7.4

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
8,212 reviews
Virgin Atlantic
7.4
Good
694 reviews

Boarding

7.7

Food

6.9

Comfort

7.3

Crew

8.1

Entertainment

7.5

Overall

7.4

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

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

    For as low as $743, United Airlines can have you in London from Washington, D.C. Reagan-National Airport in 10h 10m. There are 3652 mi between Washington, D.C. Reagan-National Airport and London. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to London round-trip?

    Currently priced at $577, Air Canada will fly you from Washington, D.C. Reagan-National Airport to London and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Virgin Atlantic and United Airlines - these airlines can fly you to your destination from $626 and $644, respectively. Air Canada is 37% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most popular routes from Washington, D.C. Reagan-National Airport to London?

    Most travelers choose Washington, D.C. Reagan-National - London Heathrow, Washington, D.C. Reagan-National - London Gatwick or Washington, D.C. Reagan-National - London Luton when deciding on the best route from Washington, D.C. Reagan-National Airport to London.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Reagan-National to London 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?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to London (average of $647). Flying from Washington, D.C. Reagan-National Airport to London in June is currently the most expensive (average of $1,407). 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?

Book flights to London if you plan to visit one of these locations
Ilford
Dorking
Gatwick
Hounslow
Harrow
Wembley
Southend-on-Sea
Basingstoke
Watford
Dartford
Winchester
Croydon
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton
Harlow

Browse thousands of different options on Cheapflights for your next trip

Top 7 airlines flying from Reagan-National to London

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$577Average$887FlexibilityNo cancel feeOn-time67%
Virgin AtlanticCheapest$626Average$891FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$644Average$928FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$653Average$775FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$655Average$946FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$683Average$907FlexibilityNo cancel feeOn-time70%
DeltaCheapest$724Average$1,062FlexibilityNo cancel feeOn-timeN/A

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