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

Return flights

05 Feb - 10 Feb	jetBlue
08 Feb - 15 Feb	jetBlue
05 Feb - 11 Feb	jetBlue
06 Feb - 08 Feb	Air Canada
15 Feb - 30 Mar	Finnair
12 Feb - 16 Feb	jetBlue
19 Feb - 24 Feb	Iberia
19 Feb - 27 Feb	Iberia
12 Feb - 25 Feb	Iberia
13 Feb - 27 Feb	Iberia
20 Feb - 27 Feb	Iberia
15 Feb - 30 Mar	Finnair	direct
26 Feb - 02 Mar	British Airways	direct

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

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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Cheapest return flights from Philadelphia to London in February from 526€

Return flights