Cheapest return flights from Philadelphia to London in April from $671

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

Return flights

01 Apr - 08 Apr jetBlue
02 Apr - 11 Apr jetBlue
30 Apr - 03 May jetBlue
05 Apr - 19 Apr jetBlue
01 Apr - 08 Apr Iberia direct
14 Apr - 06 May British Airways direct
28 Apr - 05 May British Airways
05 Apr - 19 Apr British Airways direct
08 Apr - 15 Apr British Airways direct
02 Apr - 11 Apr British Airways direct
18 Apr - 25 Apr Iberia direct
30 Apr - 03 May Iberia direct
03 Apr - 10 Apr British Airways direct
13 Apr - 20 Apr British Airways 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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