Cheapest return flights from Philadelphia to London in June from $725

Best time to book flights for Philadelphia (PHL) to London (LGW) flights at AirHint

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

Return flights

05 Jun - 06 Jun Spirit Airlines
01 Jun - 07 Jun Frontier Airlines
30 Jun - 07 Jul Frontier Airlines
10 Jun - 14 Jun Frontier Airlines
24 Jun - 01 Jul Frontier Airlines
01 Jun - 02 Jun TAP
22 Jun - 27 Jun Spirit Airlines
12 Jun - 14 Jun Spirit Airlines
22 Jun - 28 Jun Frontier Airlines
20 Jun - 23 Jun Spirit Airlines
19 Jun - 22 Jun Spirit Airlines
20 Jun - 30 Jun Spirit Airlines
18 Jun - 11 Jul Frontier Airlines
19 Jun - 14 Jul Frontier Airlines
25 Jun - 06 Jul jetBlue
26 Jun - 03 Jul ITA Airways

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

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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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