Cheapest return flights from Philadelphia to London in August from $712

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

Return flights

05 Aug - 19 Aug Aer Lingus
23 Aug - 30 Aug jetBlue
21 Aug - 30 Aug jetBlue
06 Aug - 19 Aug Aer Lingus
23 Aug - 30 Aug Finnair direct
14 Aug - 23 Aug jetBlue
17 Aug - 30 Aug Aer Lingus
20 Aug - 30 Aug jetBlue
14 Aug - 28 Aug American Airlines
17 Aug - 30 Aug British Airways direct
29 Aug - 06 Sep jetBlue
29 Aug - 06 Sep Finnair direct

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

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