Cheapest return flights from Philadelphia to London in April from $621

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

05 Apr - 12 Apr jetBlue
01 Apr - 08 Apr United
15 Apr - 22 Apr United
01 Apr - 07 Apr British Airways
15 Apr - 22 Apr British Airways direct
16 Apr - 21 Apr Air Canada
02 Apr - 23 Apr Aer Lingus
01 Apr - 23 Apr Aer Lingus
02 Apr - 25 Apr British Airways
23 Apr - 14 May Iberia
30 Apr - 07 May United
09 Apr - 20 Apr jetBlue
23 Apr - 14 May British Airways direct
24 Apr - 01 May United
27 Apr - 04 May United
17 Apr - 01 May Finnair direct
23 Apr - 07 May Delta
24 Apr - 04 May British Airways
24 Apr - 04 May Finnair direct

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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