Flights from London to Philadelphia with Swiss International Air Lines

Our cheapest offers for flights from London to Philadelphia

Here you can compare cheap flights from London (LON) 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
Philadelphia
Outbound
08/12/25
2 Stopovers (ZRH, FRA)
LX0433, LX4814, LX9394
26h 25min
Return
24/12/25
2 Stopovers (YYZ, LIS)
AC8935, AC0810, TP1336
17h 30min
Swiss International Air Lines
£859
London
Philadelphia
Outbound
08/12/25
2 Stopovers (ZRH, ORD)
LX0467, LX0008, LX3304
31h 26min
Return
24/12/25
2 Stopovers (YUL, ZRH)
AC8862, LX0087, LX0460
36h 15min
Swiss International Air Lines
£704
Prices based on recent searches, subject to last-minute changes
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Important flight information

Flight information: London - Philadelphia

Outbound and return from £ 457,22
Flight duration min. 08:10 / max. 08:45
Return flight duration min. 07:00/ max. 07:25
Distance 5715 km
Flights per week 23
Departure airport Airport London (LCY, LGW, LHR, LTN, STN, SEN) (LON)
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