Cheapest return flights from Philadelphia to London in September from 796€

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

Return flights

01 Sep - 12 Sep Scandinavian Airlines
10 Sep - 24 Sep Aer Lingus
24 Sep - 30 Sep Aer Lingus
17 Sep - 21 Sep Aer Lingus
08 Sep - 15 Sep Iberia
08 Sep - 23 Sep Iberia
01 Sep - 07 Sep Aer Lingus
02 Sep - 07 Sep Aer Lingus
08 Sep - 18 Sep Iberia
08 Sep - 30 Sep Iberia
18 Sep - 17 Oct Virgin Atlantic
18 Sep - 17 Oct Finnair direct

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

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