Cheapest return flights from Philadelphia to London in April from $676

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

Return flights

01 Apr - 22 Apr jetBlue
01 Apr - 08 Apr jetBlue
20 Apr - 28 Apr Air Canada
14 Apr - 06 May Finnair
22 Apr - 29 Apr Aer Lingus
05 Apr - 12 Apr jetBlue
06 Apr - 12 Apr jetBlue
06 Apr - 16 Apr Aer Lingus
05 Apr - 15 Apr Aer Lingus
30 Apr - 05 May jetBlue
14 Apr - 21 Apr Aer Lingus
30 Apr - 10 May jetBlue
15 Apr - 20 Apr British Airways
14 Apr - 06 May Iberia direct
30 Apr - 05 May British Airways direct
30 Apr - 10 May Iberia direct

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

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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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