Cheapest return flights from Philadelphia to London in October from 798€

AirHint found the following cheapest return flights from Philadelphia (PHL) to London (LHR) in October 2026 (see full year).

Return flights

01 Oct - 06 Oct Aer Lingus
03 Oct - 10 Oct Aer Lingus
25 Oct - 02 Nov Finnair
01 Oct - 06 Oct Finnair direct
03 Oct - 10 Oct British Airways direct
23 Oct - 06 Nov Finnair
01 Oct - 31 Oct Delta
14 Oct - 20 Oct Delta
07 Oct - 24 Oct Delta
25 Oct - 02 Nov Finnair direct
01 Oct - 31 Oct Iberia direct
23 Oct - 06 Nov Finnair direct

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

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