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

Return flights

09 Feb - 23 Feb	Spirit Airlines
16 Feb - 20 Feb	Frontier Airlines
09 Feb - 11 Mar	Spirit Airlines
22 Feb - 02 Mar	Frontier Airlines
10 Feb - 23 Feb	Frontier Airlines
09 Feb - 13 Feb	Spirit Airlines
08 Feb - 13 Feb	Spirit Airlines
22 Feb - 03 Mar	Frontier Airlines
23 Feb - 03 Mar	Frontier Airlines
22 Feb - 26 Feb	Spirit Airlines
17 Feb - 19 Feb	Frontier Airlines
06 Feb - 13 Feb	Frontier Airlines
11 Feb - 19 Feb	Air Canada
13 Feb - 22 Feb	Frontier Airlines

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 $538

Return flights