Cheapest return flights from Philadelphia to London in April from 555€

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

Return flights

30 Apr - 06 May Spirit Airlines
19 Apr - 07 May Spirit Airlines
24 Apr - 04 May Frontier Airlines
24 Apr - 01 May Frontier Airlines
13 Apr - 30 Apr Spirit Airlines
14 Apr - 07 May Lufthansa
14 Apr - 30 Apr Lufthansa
13 Apr - 03 May Spirit Airlines
13 Apr - 21 May Aer Lingus
14 Apr - 10 May Lufthansa
13 Apr - 25 May Spirit Airlines
14 Apr - 21 Apr Lufthansa
16 Apr - 07 May Lufthansa
23 Apr - 27 Apr Aer Lingus
14 Apr - 23 Apr Iberia
14 Apr - 22 Apr Aer Lingus
16 Apr - 27 Apr Aer Lingus
10 Apr - 17 Apr Air Canada
13 Apr - 14 Apr Aer Lingus
11 Apr - 30 Apr Air Canada

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

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