Flight Routes from Washington DC to London Heathrow

Compare cheap outbound and return flights from Washington DC (DCA) to London Heathrow (LHR) and find the best offer from numerous airlines and travel agencies.

Trip type
Cheapest roundtrip flight
from€868
Fastest flight
non-stop flights
1x / week
Flight distance
5,887 km
Time difference

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.

offers
Active filtersnone
Matching outbound flights2 of 2
fromto
dep.arr.
durationstopovers
  1. September 6 – 12, 2026
  2. September 13 – 19, 2026
  3. September 20 – 26, 2026
    1. DCALHR
      1 stopover
      1. Air Canada
    2. DCALHR
      1 stopover
      1. JetBlue Airways

      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

      Discover more flights around Washington DC and London Heathrow

      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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