Cheapest return flights from Philadelphia to London in April from $582

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 - 02 May Spirit Airlines
28 Apr - 04 May jetBlue
29 Apr - 09 May jetBlue
28 Apr - 05 May Spirit Airlines
05 Apr - 12 Apr Frontier Airlines
27 Apr - 01 May jetBlue
08 Apr - 29 Apr Aer Lingus
16 Apr - 23 Apr Aer Lingus
29 Apr - 20 May jetBlue
16 Apr - 25 Apr Aer Lingus
09 Apr - 16 Apr jetBlue
03 Apr - 12 Apr jetBlue
27 Apr - 04 May Spirit Airlines
30 Apr - 21 May jetBlue
09 Apr - 16 Apr Iberia direct
15 Apr - 22 Apr Air Canada
16 Apr - 22 Apr Air Canada
10 Apr - 17 Apr Iberia direct
29 Apr - 06 May United
29 Apr - 09 May British Airways 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.

Book a cheap hotel in London

Cheap car rent in London