Cheapest return flights from Philadelphia to London in October from $579

Best time to book flights for Philadelphia (PHL) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Philadelphia (PHL) to London (LHR) in October 2025 (see full year).

Return flights

22 Oct - 26 Oct Air France
21 Oct - 28 Oct jetBlue
27 Oct - 18 Nov jetBlue
01 Oct - 08 Oct United
21 Oct - 28 Oct American Airlines direct
27 Oct - 18 Nov Finnair direct
01 Oct - 08 Oct British Airways direct
11 Oct - 19 Oct jetBlue
16 Oct - 23 Oct United
26 Oct - 02 Nov United
22 Oct - 26 Oct Finnair direct
16 Oct - 23 Oct British Airways direct
06 Oct - 13 Oct British Airways direct
26 Oct - 02 Nov British Airways direct

Also check the deals for one-way flights from Philadelphia to London in October.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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