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Cheap flights from London to Washington, D.C. Reagan-National Airport from £323

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 25/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — DCA
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from London to Washington, D.C. Reagan-National are usually found in February or January, booked 58 days in advance, depart on a Thursday or Monday and return on a Wednesday

Cheap flight deals from London to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Reagan-National (DCA). 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 13 June 2025.

Round-trip from

£484

One-way from

£323

Popular in

July

Cheapest in

February

Average price

£666
American Airlines
  • American Airlines
  • 26/9-29/9
  • 4 total stops
  • 29h 10m total
  • London to Washington, D.C.
25/6
  • 25/6
  • 3 total stops
  • 32h 13m total
  • London to Washington, D.C.
Highest demand for flights based on searches. 16% potential increase in price (£82 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Average for round-trip flights in June 2025

Find flight deals from London to Reagan-National

Cheapest flights from London to Reagan-National
Explore the most affordable flight options available from London to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Fri 22/811:00LHR - DCA
1 stop12h 38mAmerican Airlines
Wed 8/1015:21DCA - LHR
1 stop11h 29mAmerican Airlines
Deal found 10/6£485
Fri 31/1006:30LHR - DCA
2 stops15h 37mMultiple Airlines
Mon 3/1112:55DCA - LHR
2 stops13h 15mMultiple Airlines
Deal found 12/6£488
Wed 10/918:15LHR - DCA
1 stop18h 49mVirgin Atlantic
Wed 1/1011:00DCA - LHR
1 stop14h 25mVirgin Atlantic
Deal found 11/6£489
Wed 17/908:55LHR - DCA
1 stop15h 07mIberia
Mon 22/915:35DCA - LHR
1 stop13h 05mIberia
Deal found 10/6£492
Sat 13/914:05LHR - DCA
1 stop12h 46mAir Canada
Sat 27/906:00DCA - LHR
1 stop22h 35mAir Canada
Deal found 12/6£494
Wed 9/712:10LGW - DCA
1 stop12h 48mJetBlue
Sat 19/718:15DCA - LGW
1 stop10h 20mJetBlue
Deal found 11/6£495
Tue 21/1008:25LHR - DCA
1 stop12h 31mJetBlue
Wed 29/1006:59DCA - LHR
1 stop9h 46mJetBlue
Deal found 12/6£496
Wed 9/712:10LGW - DCA
1 stop24h 44mIcelandair
Wed 16/713:44DCA - LGW
1 stop14h 51mIcelandair
Deal found 11/6£497
Thu 6/1107:45LCY - DCA
2 stops15h 20mVirgin Atlantic
Mon 10/1106:05DCA - LCY
2 stops20h 10mVirgin Atlantic
Deal found 12/6£499
Thu 3/711:35LGW - DCA
3 stops29h 28mMultiple Airlines
Sat 12/718:40DCA - LGW
1 stop11h 05mMultiple Airlines
Deal found 12/6£513
Mon 23/608:25LHR - DCA
1 stop30h 21mIcelandair
Mon 4/815:45DCA - LHR
1 stop9h 45mIcelandair
Deal found 12/6£524
Sat 23/816:50LHR - DCA
1 stop11h 51mDelta
Sat 29/1106:05DCA - LHR
1 stop9h 05mDelta
Deal found 10/6£531

Cheapflights Fare Finder

Customise your flight search to find flights from London to Reagan-National 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 858,174 searches. Data last updated 13 June 2025.
Use the filters below to find and compare flights from London to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

London

Fly to

Reagan-National

Route

Depart

Return

Price

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 22/8

11:00-18:38

1 stop12h 38m

Washington, D.C. Reagan-National

Wed 8/10

15:21-07:50

1 stop11h 29m

£485

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 31/10

06:30-18:07

2 stops15h 37m

Washington, D.C. Reagan-National

Mon 3/11

12:55-07:10

2 stops13h 15m

£488

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 10/9

18:15-08:04

1 stop18h 49m

Washington, D.C. Reagan-National

Wed 1/10

11:00-06:25

1 stop14h 25m

£489

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 17/9

08:55-19:02

1 stop15h 07m

Washington, D.C. Reagan-National

Mon 22/9

15:35-09:40

1 stop13h 05m

£492

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 13/9

14:05-21:51

1 stop12h 46m

Washington, D.C. Reagan-National

Sat 27/9

06:00-09:35

1 stop22h 35m

£494

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 9/7

12:10-19:58

1 stop12h 48m

Washington, D.C. Reagan-National

Sat 19/7

18:15-09:35

1 stop10h 20m

£495

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 21/10

08:25-15:56

1 stop12h 31m

Washington, D.C. Reagan-National

Wed 29/10

06:59-20:45

1 stop9h 46m

£496

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 9/7

12:10-07:54

1 stop24h 44m

Washington, D.C. Reagan-National

Wed 16/7

13:44-09:35

1 stop14h 51m

£497

LondonWashington, D.C.

LCY - DCA

LCYDCA

London City

Thu 6/11

07:45-18:05

2 stops15h 20m

Washington, D.C. Reagan-National

Mon 10/11

06:05-07:15

2 stops20h 10m

£499

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 3/7

11:35-12:03

3 stops29h 28m

Washington, D.C. Reagan-National

Sat 12/7

18:40-10:45

1 stop11h 05m

£513

Flights are sorted by cheapest return flights first.

Deals found on 10/6

Showing 1-10 of 45 results
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Best time to book a flight from London to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from London with our price prediction graph.
Estimated return 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 London to Washington, D.C. Reagan-National Airport

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

Use this chart to determine the optimal time to book a return flight from London to Reagan-National. Price data was last updated on 9 June 2025.

The price you pay for your flight from London to Washington, D.C. Reagan-National Airport may vary depending on when you book. For the best chance of a lower fare, look to book 58 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 London to Washington, D.C. Reagan-National Airport?

Currently, February is the cheapest month in which you can book a flight from London to Washington, D.C. Reagan-National Airport (average of £625). Flying from London to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of £934). 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 LON to DCA?

Find hourly flight availability from London to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

It’s optimal to fly from London to Washington, D.C. Reagan-National Airport in the morning. By choosing this option you can save up to 10% on the cost of your flight, compared to a flight in the evening.

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 66.0 mm.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated 13 June 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from London to Washington, D.C.. 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.

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from London to Reagan-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines flying from London to Washington, D.C. Reagan-National Airport round-trip?

    American Airlines, at £484, was found to be the cheapest airline from London to Washington, D.C. Reagan-National Airport.Alternate airlines flying return to your destination include Virgin Atlantic and JetBlue. American Airlines is 15% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from London to Washington, D.C. Reagan-National Airport one-way?

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as £467. However, be on the lookout for offers from Iberia and Scandinavian Airlines, as they are both options that can get you from London to Washington, D.C. Reagan-National Airport for a low price.

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to Reagan-National 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 London to Washington, D.C. Reagan-National Airport?

    Currently, February is the cheapest month in which you can book a flight from London to Washington, D.C. Reagan-National Airport (average of £625). Flying from London to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of £934). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Alternative routes for London to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from London to Reagan-National

Discover the top 9 airlines that operate flights from London to Reagan-National. 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 858,174 searches. Data last updated 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£273Average£558FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
IcelandairCheapest£373Average£523FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£375Average£630FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
LufthansaCheapest£474Average£626FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£482Average£630FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£485Average£647FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£496Average£655FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air CanadaCheapest£513Average£668FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£545Average£689FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

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How does Cheapflights help users find flights from London to Reagan-National?

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Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Reagan-National flexibly with Cheapflights today.

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Not ready to book yet? You can track prices for flights from London to Reagan-National on Cheapflights with our Price Alert feature and get notified when better prices are available.

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