Cheapest return flights from Philadelphia to London in August from 555€

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

Return flights

23 Aug - 30 Aug jetBlue
30 Aug - 11 Sep jetBlue
21 Aug - 28 Aug jetBlue
19 Aug - 03 Sep jetBlue
18 Aug - 02 Sep Iberia
17 Aug - 02 Sep British Airways
18 Aug - 02 Sep British Airways direct
17 Aug - 02 Sep British Airways direct
19 Aug - 03 Sep British Airways direct
24 Aug - 13 Sep Frontier Airlines
17 Aug - 24 Aug Finnair
17 Aug - 24 Aug British Airways direct
21 Aug - 28 Aug Finnair direct
26 Aug - 01 Sep British Airways direct
24 Aug - 13 Sep British Airways direct
20 Aug - 26 Aug Spirit Airlines
23 Aug - 30 Aug Finnair direct
21 Aug - 24 Aug British Airways direct
22 Aug - 25 Aug Finnair direct
23 Aug - 31 Aug Delta

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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