Flight Routes from London Heathrow to Philadelphia

Trip type

Our cheapest offers for flights from London Heathrow to Philadelphia

Here you can compare cheap flights from London Heathrow (LHR) to Philadelphia (PHL) 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 Philadelphia. Prices and availability may change at any time.

Flight schedule from London Heathrow (LHR) to Philadelphia (PHL)

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

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Matching outbound flights5 of 5
fromto
dep.arr.
durationstopovers
  1. 3 – 9 August 2026
  2. 10 – 16 August 2026
  3. 17 – 23 August 2026
    1. LHRPHL
      1 stopover
      1. JetBlue Airways
    2. LHRPHL
      non-stop
      1. American Airlines
    3. LHRPHL
      non-stop
      1. American Airlines
    4. LHRPHL
      non-stop
      1. British Airways
    5. LHRPHL
      non-stop
      1. British Airways

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

      Favourite airline: Aer Lingus
      76 % of flights booked on the route from London Heathrow to Philadelphia are booked with Aer Lingus, British Airways and United Airlines.
      Aer Lingus
      45 %
      British Airways
      21 %
      United Airlines
      10 %
      Stopover flights are the cheapest connection
      Compared to flights with a stopover, direct flights are £325.00 more expensive on this route.
      non stop flight
      1 stop
      2 stops
      08h 20min
      11h 10min
      51h 25min
      £1,034
      £709
      £1,282
      Favourite connection: via Dublin
      When booking flights from London Heathrow to Philadelphia 59 % of travellers prefer to fly via Dublin.
      Route
      bookings
      1 stopover Dublin
      11h 10min, from £709
      59 %
      Direct flights
      08h 20min, from £1,034
      19 %
      1 stopover Montréal-Pierre Elliott Trudeau International Airport
      30h 04min, from £839
      11 %

      Important flight information

      Flight information: London Heathrow - Philadelphia

      Outbound and return from £527.29
      Flight duration min. 08:10 / max. 08:45
      Return flight duration min. 07:00/ max. 07:25
      Distance 5696 km
      Flights per week 23
      Departure airport Airport London Heathrow (LHR)
      Arrival airport Airport Philadelphia International Airport, PA (PHL)
      Destination country Flights to United States
      City-Code - Arrival airport London - Philadelphia International Airport, PA
      Departure airport - Destination country London Heathrow - United States
      Alternative routes to United States
      Alternative flights to Philadelphia
      Flight destinations with a similar price