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$286+ 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 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LON
Sep 9 — Sep 161
Wed 9/9
Wed 9/16
1 adult, Economy
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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 August 10, 2026.

This Mytrip deal was found by Cheapflights users on 8/6. 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.
Wed 9/1611:10 am -
2 stops19h 35m
Tue 9/227:05 am -
2 stops20h 54m
Deal found 8/6$702
This Mytrip deal was found by Cheapflights users on 8/8. 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 9/216:59 am -
2 stops27h 31m
Tue 9/296:55 pm -
3 stops25h 45m
Deal found 8/8$708
This Mytrip deal was found by Cheapflights users on 8/8. 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 10/612:40 pm -
3 stops18h 00m
Wed 10/144:25 pm -
3 stops28h 15m
Deal found 8/8$709
This Mytrip deal was found by Cheapflights users on 8/6. 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 9/1511:10 am -
2 stops19h 35m
Wed 9/307:00 am -
2 stops20h 59m
Deal found 8/6$712
This Mytrip deal was found by Cheapflights users on 8/10. 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.
Wed 9/3011:00 am -
2 stops21h 55m
Wed 10/78:00 am -
2 stops17h 00m
Deal found 8/10$728
This Mytrip deal was found by Cheapflights users on 8/10. 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.
Wed 9/3011:00 am -
2 stops28h 20m
Wed 10/78:20 am -
2 stops16h 40m
Deal found 8/10$729
This Mytrip deal was found by Cheapflights users on 8/10. 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 9/226:00 am -
2 stops24h 40m
Mon 9/288:45 pm -
3 stops30h 05m
Deal found 8/10$737
This Mytrip deal was found by Cheapflights users on 8/8. 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.
Wed 9/306:59 am -
2 stops26h 21m
Mon 10/58:45 pm -
3 stops26h 30m
Deal found 8/8$745
This Mytrip deal was found by Cheapflights users on 8/7. 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.
Sun 9/136:10 am -
2 stops32h 45m
Wed 9/237:00 am -
2 stops20h 59m
Deal found 8/7$747
This Mytrip deal was found by Cheapflights users on 8/7. 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 10/126:59 am -
2 stops26h 06m
Thu 10/226:15 pm -
3 stops32h 35m
Deal found 8/7$748
This Mytrip deal was found by Cheapflights users on 8/8. 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 9/2111:00 am -
2 stops23h 30m
Mon 10/58:45 pm -
3 stops30h 05m
Deal found 8/8$749
This Mytrip deal was found by Cheapflights users on 8/5. 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.
Fri 9/116:10 am -
2 stops28h 55m
Thu 9/177:00 am -
2 stops20h 59m
Deal found 8/5$754

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 August 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$702
(Mytrip)

One-way from

$286
(KAYAK)

Popular in

June

Cheapest in

January

Average price

$969
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. 19% potential increase in price ($216 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 August 10, 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 Washington, D.C. Reagan-National - LTN London Luton

DCALTN

Washington, D.C. Reagan-National

Wed 9/30

11:00 am-1:55 pm

2 stops21h 55m

London Luton

Wed 10/7

8:00 am-8:00 pm

2 stops17h 00m

$728

Washington, D.C.London

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

DCASTN

Washington, D.C. Reagan-National

Wed 9/30

11:00 am-8:20 pm

2 stops28h 20m

London Stansted

Wed 10/7

8:20 am-8:00 pm

2 stops16h 40m

$729

Washington, D.C.London

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

DCASTN

Washington, D.C. Reagan-National

Tue 9/22

6:00 am-11:40 am

2 stops24h 40m

London Stansted

Mon 9/28

8:45 pm-9:50 pm

3 stops30h 05m

$737

Washington, D.C.London

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

DCASTN

Washington, D.C. Reagan-National

Sun 9/13

6:10 am-7:55 pm

2 stops32h 45m

London Stansted

Wed 9/23

7:00 am-10:59 pm

2 stops20h 59m

$747

Washington, D.C.London

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

DCALTN

Washington, D.C. Reagan-National

Mon 10/12

6:59 am-2:05 pm

2 stops26h 06m

London Luton

Thu 10/22

6:15 pm-9:50 pm

3 stops32h 35m

$748

Washington, D.C.London

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

DCALTN

Washington, D.C. Reagan-National

Wed 9/16

4:20 pm-2:25 pm

2 stops17h 05m

London Luton

Mon 9/21

8:35 pm-7:59 pm

3 stops28h 24m

$775

Washington, D.C.London

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

DCASTN

Washington, D.C. Reagan-National

Fri 10/2

6:00 am-7:25 pm

2 stops32h 25m

London Stansted

Tue 10/6

6:55 pm-9:50 pm

3 stops31h 55m

$784

Washington, D.C.London

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

DCASTN

Washington, D.C. Reagan-National

Fri 10/2

6:00 am-12:30 pm

2 stops25h 30m

London Stansted

Mon 10/5

8:45 pm-10:34 pm

3 stops30h 49m

$792

Washington, D.C.London

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

DCASTN

Washington, D.C. Reagan-National

Thu 10/1

6:59 am-10:00 pm

3 stops34h 01m

London Stansted

Mon 10/5

10:45 pm-10:34 pm

3 stops28h 49m

$792

Washington, D.C.London

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

DCASTN

Washington, D.C. Reagan-National

Mon 9/21

4:20 pm-12:50 pm

2 stops15h 30m

London Stansted

Wed 9/30

6:30 am-6:15 pm

2 stops16h 45m

$800

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Showing 1-10 of 60 resultsSorted by cheapest first
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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 August.
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
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

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 $678). 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 $859 and $1,146 in September.
The cheapest round-trip price found within the last 5 days was $702 on Multiple Airlines (Sep 16-Sep 22).

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 August 10, 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
7.5
Good
694 reviews

Comfort

7.3

Entertainment

7.5

Crew

8.1

Food

6.9

Overall

7.5

Boarding

7.7

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
694 reviews
Virgin Atlantic
7.5
Good
694 reviews

Comfort

7.3

Entertainment

7.5

Crew

8.1

Food

6.9

Overall

7.5

Boarding

7.7

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
11,903 reviews
Virgin Atlantic
7.5
Good
694 reviews

Comfort

7.3

Entertainment

7.5

Crew

8.1

Food

6.9

Overall

7.5

Boarding

7.7

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
3,034 reviews
Virgin Atlantic
7.5
Good
694 reviews

Comfort

7.3

Entertainment

7.5

Crew

8.1

Food

6.9

Overall

7.5

Boarding

7.7

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
8,156 reviews
Virgin Atlantic
7.5
Good
694 reviews

Comfort

7.3

Entertainment

7.5

Crew

8.1

Food

6.9

Overall

7.5

Boarding

7.7

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 $895, Scandinavian Airlines can have you in London from Washington, D.C. Reagan-National Airport in 13h 35m. There are 3672 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 36% 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 $678). 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
Hounslow
Winchester
Croydon
Gatwick
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Harrow
Eastleigh
Southend-on-Sea
Watford
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Sutton
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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 August 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$577Average$887FlexibilityNo cancel feeOn-time67%
Virgin AtlanticCheapest$626Average$891FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$644Average$928FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$655Average$903FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$656Average$776FlexibilityNo cancel feeOn-time62%
British AirwaysCheapest$677Average$902FlexibilityNo cancel feeOn-time70%
DeltaCheapest$724Average$1,023FlexibilityNo cancel feeOn-timeN/A

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