AirHint found the following cheapest return flights from Philadelphia (PHL) to London (LHR) in November 2025 (see full year).

Return flights

18 Nov - 23 Nov	Aer Lingus
03 Nov - 17 Nov	Air Canada
18 Nov - 24 Nov	Air Canada
19 Nov - 26 Nov	United
05 Nov - 12 Nov	United
19 Nov - 26 Nov	British Airways	direct
11 Nov - 18 Nov	British Airways	direct
05 Nov - 12 Nov	British Airways	direct
04 Nov - 09 Nov	Aer Lingus
06 Nov - 13 Nov	Aer Lingus
27 Nov - 04 Dec	British Airways	direct
28 Nov - 02 Dec	Air Canada
24 Nov - 01 Dec	Air Canada
29 Nov - 06 Dec	British Airways	direct
26 Nov - 01 Dec	Aer Lingus
28 Nov - 02 Dec	Finnair	direct
24 Nov - 01 Dec	British Airways	direct
26 Nov - 01 Dec	British Airways	direct

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

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 November from 453€

Return flights