AirHint found the following cheapest return flights from Philadelphia (PHL) to London (LGW) in April 2026 (see full year).
Return flights
| 05 Apr - 12 Apr | TAP | ||
| 14 Apr - 09 May | TAP | ||
| 14 Apr - 06 May | Aer Lingus | ||
| 06 Apr - 12 Apr | TAP | ||
| 03 Apr - 11 Apr | Aer Lingus | ||
| 23 Apr - 16 May | TAP | ||
| 22 Apr - 16 May | TAP | ||
| 01 Apr - 05 Apr | TAP |
Also check the deals for one-way flights from Philadelphia to London in April.
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