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

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

Return flights

19 Aug - 26 Aug Aer Lingus
25 Aug - 31 Aug Aer Lingus
19 Aug - 24 Aug Aer Lingus
15 Aug - 20 Aug Aer Lingus
17 Aug - 25 Aug Aer Lingus
20 Aug - 25 Aug Iberia
03 Aug - 21 Sep Finnair
26 Aug - 07 Sep Finnair
09 Aug - 22 Aug British Airways direct
25 Aug - 31 Aug Iberia direct
06 Aug - 20 Aug British Airways direct
20 Aug - 25 Aug British Airways direct
27 Aug - 07 Sep Aer Lingus
26 Aug - 07 Sep Iberia direct
03 Aug - 21 Sep Finnair direct
29 Aug - 06 Sep Finnair direct

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

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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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