Cheapest return flights from Philadelphia to London in June from $945

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

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

Return flights

03 Jun - 10 Jun Icelandair
11 Jun - 18 Jun jetBlue
04 Jun - 10 Jun Icelandair
04 Jun - 13 Jun Aer Lingus
04 Jun - 20 Jun Air Canada
10 Jun - 17 Jun United
04 Jun - 20 Jun Finnair direct
04 Jun - 13 Jun Finnair direct
03 Jun - 10 Jun Iberia direct
11 Jun - 18 Jun British Airways direct
18 Jun - 02 Jul Finnair
18 Jun - 02 Jul British Airways direct
30 Jun - 07 Jul United

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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