Cheapest return flights from Philadelphia to London in August from 421€

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

Return flights

11 Aug - 20 Aug Spirit Airlines
11 Aug - 26 Aug Spirit Airlines
09 Aug - 25 Aug Frontier Airlines
11 Aug - 19 Aug Spirit Airlines
01 Aug - 15 Sep Spirit Airlines
18 Aug - 15 Sep Spirit Airlines
09 Aug - 24 Aug Spirit Airlines
16 Aug - 23 Aug Spirit Airlines
08 Aug - 23 Aug Spirit Airlines
12 Aug - 16 Sep jetBlue
13 Aug - 18 Aug Spirit Airlines
01 Aug - 31 Aug Spirit Airlines
17 Aug - 23 Aug Spirit Airlines
28 Aug - 02 Sep Frontier Airlines
22 Aug - 01 Sep Spirit Airlines

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

Skyscanner

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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