Cheapest return flights from Philadelphia to London in May from $795

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

Return flights

01 May - 05 May TAP
25 May - 29 May Spirit Airlines
08 May - 17 May Aer Lingus
18 May - 25 May British Airways
21 May - 29 May TAP
22 May - 07 Jun jetBlue
09 May - 17 May jetBlue
23 May - 30 May jetBlue
29 May - 12 Jun Iberia

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

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