Cheapest return flights from Philadelphia to London in August from 444€

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

Return flights

13 Aug - 20 Aug Spirit Airlines
19 Aug - 26 Aug Spirit Airlines
19 Aug - 24 Aug Spirit Airlines
18 Aug - 26 Aug Spirit Airlines
22 Aug - 26 Aug Spirit Airlines
11 Aug - 19 Aug Frontier Airlines
21 Aug - 26 Aug Spirit Airlines
22 Aug - 25 Aug Spirit Airlines
23 Aug - 31 Aug Delta
11 Aug - 18 Aug Spirit Airlines
30 Aug - 07 Sep Frontier Airlines
28 Aug - 09 Sep Frontier Airlines
29 Aug - 03 Sep Spirit Airlines
29 Aug - 05 Sep Aer Lingus
29 Aug - 07 Sep Spirit Airlines
29 Aug - 06 Sep Spirit Airlines

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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