HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$398+ Cheap flights from Reagan-National (DCA) to London (LON)

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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LON
Jun 5 — Jun 121
Fri 6/5
Fri 6/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to London 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 Reagan-National to London

Cheapest flights from Reagan-National to London
Explore the most affordable flight options available from Reagan-National to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 6, 2026.

This Mytrip deal was found by Cheapflights users on 5/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:45 pm
DCA
-
LTN
3 stops22h 00m
Multiple Airlines
Wed 6/106:15 am
LTN
-
DCA
3 stops31h 38m
Multiple Airlines
Deal found 5/1$758
This Mytrip deal was found by Cheapflights users on 5/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/156:55 pm
DCA
-
LGW
2 stops20h 10m
Multiple Airlines
Mon 6/229:30 pm
LGW
-
DCA
3 stops30h 01m
Multiple Airlines
Deal found 5/1$758
This Mytrip deal was found by Cheapflights users on 5/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:45 pm
DCA
-
STN
3 stops29h 35m
Multiple Airlines
Wed 6/106:30 am
STN
-
DCA
3 stops31h 23m
Multiple Airlines
Deal found 5/1$758
This Mytrip deal was found by Cheapflights users on 5/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:59 am
DCA
-
STN
3 stops32h 56m
Multiple Airlines
Wed 6/176:30 am
STN
-
DCA
3 stops31h 22m
Multiple Airlines
Deal found 5/2$763
This Mytrip deal was found by Cheapflights users on 5/3. 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.
Tue 6/211:00 am
DCA
-
STN
3 stops29h 20m
Multiple Airlines
Wed 6/106:30 am
STN
-
DCA
3 stops18h 28m
Multiple Airlines
Deal found 5/3$767
This Mytrip deal was found by Cheapflights users on 5/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:59 am
DCA
-
LGW
1 stop19h 56m
Multiple Airlines
Mon 6/159:30 pm
LGW
-
DCA
3 stops29h 58m
Multiple Airlines
Deal found 5/1$769
This Mytrip deal was found by Cheapflights users on 5/3. 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.
Tue 6/26:59 am
DCA
-
STN
3 stops33h 21m
Multiple Airlines
Tue 6/910:00 pm
STN
-
DCA
3 stops25h 13m
Multiple Airlines
Deal found 5/3$770
This Mytrip deal was found by Cheapflights users on 5/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:00 am
DCA
-
STN
3 stops32h 25m
Multiple Airlines
Thu 6/186:30 am
STN
-
DCA
3 stops31h 22m
Multiple Airlines
Deal found 5/2$774
This Mytrip deal was found by Cheapflights users on 5/3. 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.
Tue 6/211:00 am
DCA
-
STN
3 stops29h 20m
Multiple Airlines
Sun 6/1410:00 pm
STN
-
DCA
3 stops29h 28m
Multiple Airlines
Deal found 5/3$779
This Mytrip deal was found by Cheapflights users on 5/3. 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.
Fri 6/56:55 pm
DCA
-
STN
2 stops23h 25m
Multiple Airlines
Mon 6/86:30 am
STN
-
DCA
3 stops31h 23m
Multiple Airlines
Deal found 5/3$781
This Mytrip deal was found by Cheapflights users on 5/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/911:00 am
DCA
-
STN
3 stops20h 45m
Multiple Airlines
Thu 6/186:30 am
STN
-
DCA
3 stops31h 22m
Multiple Airlines
Deal found 5/2$782
This Mytrip deal was found by Cheapflights users on 5/5. 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.
Tue 6/211:00 am
DCA
-
STN
2 stops21h 25m
Multiple Airlines
Mon 6/1510:00 pm
STN
-
DCA
3 stops29h 28m
Multiple Airlines
Deal found 5/5$783

Find flight deals from Reagan-National to London

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to London (LON). 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 May 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$758
(Mytrip)

One-way from

$398
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$778
Provider with most accurate pricing for Washington, D.C. Reagan-National-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-London (LON) flights.
Search Deals
From Washington, D.C. Reagan-National to London (LON)
Search Deals
One-way flight from Washington, D.C. Reagan-National to London (LON)
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to London 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 May 6, 2026.
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

Washington, D.C.London

DCA - LTN

DCALTN

Washington, D.C. Reagan-National

Mon 6/1

12:45 pm-3:45 pm

3 stops22h 00m

London Luton

Wed 6/10

6:15 am-8:53 am

3 stops31h 38m

$758

Washington, D.C.London

DCA - STN

DCASTN

Washington, D.C. Reagan-National

Tue 6/2

11:00 am-10:40 pm

2 stops30h 40m

London Stansted

Tue 6/9

10:00 pm-6:13 pm

3 stops25h 13m

$814

Washington, D.C.London

DCA - LTN

DCALTN

Washington, D.C. Reagan-National

Fri 6/12

6:55 pm-5:25 pm

2 stops17h 30m

London Luton

Fri 6/19

6:20 am-12:00 pm

3 stops34h 40m

$842

Washington, D.C.London

DCA - LTN

DCALTN

Washington, D.C. Reagan-National

Fri 6/12

6:55 pm-5:25 pm

2 stops17h 30m

London Luton

Wed 6/24

6:10 am-10:18 am

3 stops33h 08m

$847

Washington, D.C.London

DCA - LTN

DCALTN

Washington, D.C. Reagan-National

Tue 6/2

6:59 am-1:25 pm

3 stops25h 26m

London Luton

Tue 6/9

9:40 am-7:58 pm

2 stops15h 18m

$856

Washington, D.C.London

DCA - STN

DCASTN

Washington, D.C. Reagan-National

Sat 6/6

6:00 am-10:15 am

3 stops23h 15m

London Stansted

Tue 6/9

8:30 am-7:58 pm

2 stops16h 28m

$857

Washington, D.C.London

DCA - STN

DCASTN

Washington, D.C. Reagan-National

Thu 6/4

6:59 am-9:20 pm

3 stops33h 21m

London Stansted

Thu 6/11

8:30 am-7:58 pm

2 stops16h 28m

$859

Washington, D.C.London

DCA - STN

DCASTN

Washington, D.C. Reagan-National

Mon 6/1

6:00 am-12:50 pm

3 stops25h 50m

London Stansted

Sun 6/7

10:00 pm-10:28 pm

3 stops29h 28m

$865

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 9/2

10:35 am-9:25 am

2 stops17h 50m

London Gatwick

Wed 9/9

10:25 am-11:12 pm

2 stops17h 47m

$878

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Tue 9/8

11:00 am-8:50 am

2 stops16h 50m

London City

Tue 9/22

10:00 am-8:19 pm

2 stops15h 19m

$896

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Compare providers for flights from Reagan-National to London

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 London in May.
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
JustAirTicketPrice 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
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

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

The price you pay for your flight from Washington, D.C. Reagan-National Airport to London may vary depending on when you book. For the best chance of a lower fare, look to book 45 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to London (average of $31). Flying from Washington, D.C. Reagan-National Airport to London in June is currently the most expensive (average of $691). 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?

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

Share of 1-stop round-trip flights from Washington, D.C. Reagan-National Airport to London chosen by Cheapflights users in the past 12 months, using the same layover each way.

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?

Average round-trip fare for 1-stop flights from Washington, D.C. Reagan-National Airport to London, chosen by Cheapflights users in the past 12 months, with the same layover each way.

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?

Shortest average travel time for 1-stop one-way flights from Washington, D.C. Reagan-National Airport to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

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?

Average layover duration for 1-stop one-way flights from Washington, D.C. Reagan-National Airport to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

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

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated May 6, 2026.
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
688 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.5

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
7.4
Good
688 reviews
Virgin Atlantic
7.4
Good
688 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.5

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
7.1
Good
11,669 reviews
Virgin Atlantic
7.4
Good
688 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.5

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
7.1
Good
2,980 reviews
Virgin Atlantic
7.4
Good
688 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.5

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
7,946 reviews
Virgin Atlantic
7.4
Good
688 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.5

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 London. 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?

    For as low as $936, Delta can have you in London from Washington, D.C. Reagan-National Airport in 11h 35m. There are 3670 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 $497, American Airlines will fly you from Washington, D.C. Reagan-National Airport to London and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from British Airways and Delta - these airlines can fly you to your destination from $529 and $558, respectively. American Airlines is 39% 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 Stansted 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, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to London (average of $31). Flying from Washington, D.C. Reagan-National Airport to London in June is currently the most expensive (average of $691). 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
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Borehamwood
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Sutton
Stansted

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 7 airlines flying from Reagan-National to London

Discover the top 7 airlines that operate flights from Reagan-National to London. 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 May 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$497Average$745FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$529Average$839FlexibilityNo cancel feeOn-time70%
DeltaCheapest$558Average$750FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$577Average$830FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$598Average$928FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$626Average$893FlexibilityNo cancel feeOn-time72%
JetBlueCheapest$639Average$785FlexibilityNo cancel feeOn-time62%

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.