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.

Outbound Return Airlines Shop Baggage Price
London Heathrow
Philadelphia
Outbound
17/08/26
1 Stopover (BOS)
B61621, B62459
16h 09min
Return
15/09/26
1 Stopover (BOS)
B61860, B61620
18h 30min
JetBlue Airways
£664
Best option
London Heathrow
Philadelphia
Outbound
17/08/26
direct
IB3519
07h 55min
Return
15/09/26
direct
IB4672
07h 15min
Iberia ?
£766
London Heathrow
Philadelphia
Please note: transfer for connecting flight
Outbound
22/06/26
1 Stopover (MCO)
VS0135, F92508
15h 03min
Return
24/06/26
1 Stopover (MCO)
F92507, VS0092
14h 09min
Virgin Atlantic Airways, Frontier Airlines ?
£924
found yesterday
London Heathrow
Philadelphia
Outbound
17/08/26
2 Stopovers (FRA, BOS)
LH0923, DE2038, B62459
17h 19min
Return
15/09/26
2 Stopovers (BOS, FRA)
B61160, DE2039, LH0908
23h 20min
Lufthansa, Condor, JetBlue Airways
£977
London Heathrow
Philadelphia
Outbound
17/08/26
1 Stopover (DUB)
BA5953, BA1580
12h 20min
Return
15/09/26
direct
BA1533
07h 15min
British Airways
£693
London Heathrow
Philadelphia
Outbound
17/08/26
1 Stopover (DUB)
BA5953, BA1580
12h 20min
Return
15/09/26
direct
BA1533
07h 15min
British Airways
£697
London Heathrow
Philadelphia
Outbound
17/08/26
1 Stopover (DUB)
BA5953, BA1580
12h 20min
Return
15/09/26
direct
BA1533
07h 15min
British Airways
£698
London Heathrow
Philadelphia
Outbound
17/08/26
1 Stopover (DUB)
BA5953, BA1580
12h 20min
Return
15/09/26
direct
BA1533
07h 15min
British Airways
£699
London Heathrow
Philadelphia
Outbound
17/08/26
1 Stopover (ATL)
VS4009, VS2660
14h 09min
Return
15/09/26
1 Stopover (ATL)
VS2666, VS0104
14h 06min
Virgin Atlantic Airways ?
£779
London Heathrow
Philadelphia
Outbound
17/08/26
1 Stopover (DUB)
AA7153, AA0723
12h 55min
Return
15/09/26
1 Stopover (DUB)
AA0722, AA7136
10h 20min
American Airlines ?
£785
Prices based on recent searches, subject to last-minute changes
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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 £663.60
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
Alternative routes to United States
Alternative flights to Philadelphia
Flight destinations with a similar price