Cheapest return flights from Philadelphia to London in April from 636€

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 April 2025 (see full year).

Return flights

03 Apr - 08 Apr Frontier Airlines
05 Apr - 12 Apr Frontier Airlines
03 Apr - 06 Apr Aer Lingus
24 Apr - 02 May jetBlue
03 Apr - 10 Apr Aer Lingus
23 Apr - 30 Apr United
29 Apr - 06 May United
15 Apr - 21 Apr Aer Lingus
19 Apr - 23 Apr Aer Lingus
11 Apr - 16 Apr Frontier Airlines
03 Apr - 10 Apr Finnair direct
17 Apr - 06 May Iberia
23 Apr - 27 Apr United
24 Apr - 02 May Finnair direct
17 Apr - 06 May Iberia direct
24 Apr - 04 May United
26 Apr - 03 May United

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

Skyscanner

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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