| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| London Heathrow Philadelphia | Outbound 31/03/26 1 Stopover (DUB) EI0151, AY3803 12h 25min | Return 21/04/26 1 Stopover (YYZ) AA5116, AA6921 13h 40min |   Aer Lingus Irish Airlines, Finnair |  | £512 | ||
| Best option London Heathrow Philadelphia | Outbound 31/03/26 direct IB4673 08h 00min | Return 21/04/26 direct IB4672 07h 15min |  Iberia |  | ? | £542 | |
| London Heathrow Philadelphia | Outbound 31/03/26 1 Stopover (DUB) BA5953, BA1580 11h 15min | Return 21/04/26 direct BA1587 07h 25min |  British Airways |  | £537 | ||
| London Heathrow Philadelphia | Outbound 31/03/26 1 Stopover (DUB) BA5953, BA1580 11h 15min | Return 21/04/26 direct BA1587 07h 25min | British Airways |  | £538 | ||
| London Heathrow Philadelphia | Outbound 31/03/26 1 Stopover (DUB) EI0151, AY3803 12h 25min | Return 21/04/26 1 Stopover (CLT) BA2380, BA1599 14h 15min | Aer Lingus Irish Airlines, Finnair |  | £558 | ||
| London Heathrow Philadelphia | Outbound 31/03/26 direct BA1538 08h 00min | Return 21/04/26 direct BA1587 07h 25min | British Airways | | £559 | ||
| London Heathrow Philadelphia | Outbound 31/03/26 1 Stopover (CLT) AA0731, AA1873 12h 54min | Return 21/04/26 1 Stopover (YUL) AA6023, AA6919 15h 03min |  American Airlines |  | ? | £570 | |
| London Heathrow Philadelphia | Outbound 31/03/26 direct AY3867 08h 00min | Return 21/04/26 direct AY5466 07h 05min | Finnair |  | £576 | ||
| London Heathrow Philadelphia | Outbound 31/03/26 1 Stopover (MAD) IB0712, IB4675 13h 20min | Return 21/04/26 1 Stopover (ORD) IB4686, IB4860 11h 30min | Iberia |  | ? | £583 | |
| London Heathrow Philadelphia | Outbound 08/05/26 1 Stopover (FRA) LH0901, LH4272 11h 35min | Return 20/05/26 1 Stopover (YUL) AC8860, AC0862 13h 10min |  Lufthansa | | £594 |
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 %