Flight Routes from Washington DC to London Heathrow

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Our cheapest offers for flights from Washington DC to London Heathrow

Here you can compare cheap flights from Washington DC (DCA) to London Heathrow (LHR) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to London Heathrow. Prices and availability may change at any time.

Flight schedule from Washington DC (DCA) to London Heathrow (LHR)

Select a travel date in the flight schedule for the route from Washington DC (DCA) to London Heathrow (LHR) and compare affordable flight deals.

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Matching outbound flights2 of 2
fromto
dep.arr.
durationstopovers
  1. August 9 – 15, 2026
  2. August 16 – 22, 2026
  3. August 23 – 29, 2026
    1. DCALHR
      1 stopover
      1. United Airlines
    2. DCALHR
      1 stopover
      1. Air Canada

      Tips and tricks to help you find cheap flights from Washington DC to London Heathrow

      Favorite airline: United Airlines
      The favorite airline for flights from Washington DC to London Heathrow is United Airlines.
      United Airlines
      31 %
      Air Canada
      23 %
      Finnair
      23 %
      Cheapest weekday: Monday
      The cheapest day of departure is Monday. You can save up to 49 % when you fly on these days of the week.
      Favourite connection: via New York
      Flights with a stopover in New York are the most popular connection for this route.
      Route
      bookings
      1 stopover New York - John F. Kennedy International Airport, NY
      10h 35min, from 608 $
      40 %
      1 stopover New York - Newark Liberty International Airport, NJ
      09h 40min, from 546 $
      30 %
      1 stopover Toronto - Lester B. Pearson International Airport
      32h 20min, from 637 $
      20 %

      Important flight information

      Flight information: Washington DC - London Heathrow

      Roundtrip from 821,00 $
      Flight duration min. 08:22
      Distance 5887 km
      Flights per week 1
      Departure airport Airport Washington DC - Ronald Reagan National Airport, VA (DCA)
      Arrival airport Airport London Heathrow (LHR)
      Destination country Flights to United Kingdom
      City-Code - Arrival airport Washington-DC - London Heathrow
      Departure airport - Destination country Washington DC - Ronald Reagan National Airport, VA - United Kingdom
      Departure airport - City-Code Washington DC - Ronald Reagan National Airport, VA - London
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