Cheapest return flights from Philadelphia to London in October from $475

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

Return flights

29 Oct - 05 Nov Aer Lingus
08 Oct - 16 Oct Aer Lingus
01 Oct - 08 Oct Aer Lingus
08 Oct - 14 Oct Aer Lingus
05 Oct - 14 Oct Aer Lingus
01 Oct - 07 Oct Aer Lingus
01 Oct - 08 Oct British Airways direct
08 Oct - 14 Oct American Airlines direct
08 Oct - 16 Oct British Airways direct
21 Oct - 28 Oct British Airways direct
15 Oct - 22 Oct British Airways direct
29 Oct - 05 Nov British Airways direct
21 Oct - 03 Nov Air Canada
15 Oct - 08 Nov Aer Lingus
13 Oct - 08 Nov Aer Lingus
20 Oct - 03 Nov Air Canada
23 Oct - 06 Nov Aer Lingus
24 Oct - 04 Nov American Airlines
22 Oct - 01 Nov American Airlines
13 Oct - 08 Nov British Airways direct

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

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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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