Outbound | Return | Airlines | Shop | Baggage | Price | ||
---|---|---|---|---|---|---|---|
London Philadelphia | Outbound 03/09/25 1 Stopover (BOS) B61926, B62159 11h 32min | Return 15/09/25 1 Stopover (BOS) B61160, B62104 18h 15min | | ![]() | ? | £508 | |
Best option London Philadelphia | Outbound 09/10/25 direct AY4050 07h 55min | Return 14/10/25 direct AY4045 07h 10min | | ![]() | £585 | ||
London Philadelphia | Outbound 11/09/25 1 Stopover (MIA) Z00723, NK3150 32h 29min | Return 15/09/25 1 Stopover (MCO) NK0321, Z00784 16h 31min | | ![]() | £547 | ||
London Philadelphia | Outbound 20/10/25 1 Stopover (MAD) IB1864, AY5680 24h 20min | Return 11/11/25 1 Stopover (MAD) AY3812, IB1863 17h 50min | | ![]() | £616 | ||
London Philadelphia | Outbound 03/09/25 1 Stopover (BOS) B61926, B61859 15h 12min | Return 15/09/25 1 Stopover (BOS) B60560, B62104 13h 35min | | ![]() | £518 | ||
London Philadelphia | Outbound 20/10/25 1 Stopover (FRA) LH0901, LH4272 11h 30min | Return 11/11/25 1 Stopover (FRA) LH4273, LH0908 16h 15min | | ![]() | £518 | ||
London Philadelphia | Outbound 20/10/25 1 Stopover (FRA) LH0901, LH4272 11h 30min | Return 11/11/25 1 Stopover (FRA) LH4273, LH0908 16h 15min | | ![]() | £521 | ||
London Philadelphia | Outbound 03/09/25 1 Stopover (BCN) AA6811, AA0743 15h 00min | Return 15/09/25 1 Stopover (YUL) AA5777, AA6919 31h 50min | | ![]() | ? | £521 | |
London Philadelphia | Outbound 20/10/25 1 Stopover (FRA) LH0901, LH4272 11h 30min | Return 11/11/25 1 Stopover (FRA) LH4273, LH0918 20h 15min | | ![]() | £525 | ||
London Philadelphia | Outbound 20/10/25 1 Stopover (FRA) LX8810, LX9658 11h 30min | Return 11/11/25 1 Stopover (ORD) LX0622, LX0929 14h 45min | | ![]() | £527 |
Stops
- Direct flight
Airline
- British Airways
- Lufthansa
- Aer Lingus Irish Airlines
- Finnair
- Iberia
Tips and tricks to help you find cheap flights from London to Philadelphia
Favourite airline: Aer Lingus
55 % of travellers choose to book flights on this route with Aer Lingus, British Airways and Virgin Atlantic.

Aer Lingus
29 %

British Airways
19 %

Virgin Atlantic
7 %
Stopover flights are the cheapest connection
Flights with a stopover are on average £325.00 cheaper than direct flights.
non stop flight
1 stop
2 stops
08h 20min
11h 10min
41h 43min
£1,034
£709
£827
Favourite connection: via Dublin
The most popular flights on this route are via Dublin and are booked by 52 % of all travellers.
Route
bookings
1 stopover Dublin
11h 10min, from £709
52 %
Direct flights
08h 20min, from £1,034
16 %
1 stopover Boston Logan
13h 19min, from £848
13 %
Important flight information
Flight information: London - Philadelphia
Outbound and return from | £507.70 |
---|---|
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
- Flight London - New York from £334
- Flight London - Los Angeles from £424
- Flight London - San Francisco from £447
- Flight London - Miami from £357
- Flight London - Orlando from £352
- Flight London - Chicago from £398
- Flight London - Boston from £365
- Flight London - Santa Ana, CA from £450
- Flight London - Baltimore from £569
- Flight London - Tampa from £464
Alternative flights to Philadelphia
- Flight London Heathrow - Philadelphia from £518
- Flight London Gatwick - Philadelphia from £508
- Flight London City - Philadelphia from £551
Flight destinations with a similar price
- Flight London - Singapore from £540
- Flight London - Accra from £533
- Flight London - Bangkok from £474
- Flight London - Kuala Lumpur from £552
- Flight London - Goa from £509
- Flight London - Nairobi from £488
- Flight London - Islamabad from £515
- Flight London - Havana from £542
- Flight London - Lahore from £553
- Flight London - Vancouver from £537