AirHint found the following cheapest return flights from Philadelphia (PHL) to London (LHR) in June 2026 (see full year).

Return flights

10 Jun - 16 Jun	jetBlue
23 Jun - 07 Jul	TAP
11 Jun - 04 Jul	TAP
23 Jun - 07 Jul	British Airways	direct
04 Jun - 14 Jun	United
19 Jun - 03 Jul	Air Canada
19 Jun - 26 Jun	jetBlue
04 Jun - 14 Jun	Finnair	direct
19 Jun - 03 Jul	British Airways	direct
19 Jun - 26 Jun	British Airways	direct
20 Jun - 27 Jun	jetBlue
10 Jun - 16 Jun	British Airways	direct
11 Jun - 04 Jul	British Airways	direct
20 Jun - 27 Jun	British Airways	direct

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

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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Cheapest return flights from Philadelphia to London in June from $984

Return flights