Flight Routes from Philadelphia to London Heathrow

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

Trip type
Fastest outbound flight
Fastest inbound flight
non-stop flights
24x / week
Flight distance
5,696 km
Time difference

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

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

offers
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Matching outbound flights5 of 5
fromto
dep.arr.
durationstopovers
  1. September 20 – 26, 2026
  2. Sep 27 – Oct 3, 2026
  3. October 4 – 10, 2026
    1. PHLLHR
      1 stopover
      1. JetBlue Airways
    2. PHLLHR
      nonstop
      1. British Airways
    3. PHLLHR
      nonstop
      1. American Airlines
    4. PHLLHR
      nonstop
      1. American Airlines
    5. PHLLHR
      nonstop
      1. American Airlines

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

      Favorite airline: Aer Lingus
      Flight tickets on the route Philadelphia – London Heathrow are most frequently booked with Aer Lingus.
      Aer Lingus
      26 %
      United Airlines
      25 %
      British Airways
      16 %
      Direct flights are cheaper
      Direct flights on this route are $21.00 cheaper on average than flights with a stopover.
      non stop flight
      1 stop
      2 stops
      07h 05min
      29h 10min
      31h 12min
      US$578
      US$599
      US$602
      Favourite connection: via Dublin
      When booking flights from Philadelphia to London Heathrow 35 % of travelers prefer to fly via Dublin.
      Route
      bookings
      1 stopover Dublin
      10h 35min, from US$719
      35 %
      1 stopover Montréal-Pierre Elliott Trudeau International Airport
      09h 50min, from US$678
      25 %
      Direct flights
      07h 05min, from US$578
      20 %

      Important flight information

      Discover more flights around Philadelphia and London Heathrow

      Departure airport Airport Philadelphia International Airport, PA (PHL)
      Arrival airport Airport London Heathrow (LHR)
      Destination country Flights to United Kingdom
      Departure airport - Destination country Philadelphia International Airport, PA - United Kingdom
      Departure airport - City-Code Philadelphia International Airport, PA - London
      Alternative flights to London Heathrow
      Flight destinations with a similar price