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

Return flights

12 Nov - 17 Nov	Lufthansa
17 Nov - 23 Nov	Lufthansa
16 Nov - 30 Nov	Air Canada
26 Nov - 01 Dec	Air Canada
25 Nov - 02 Dec	United
15 Nov - 22 Nov	United
20 Nov - 27 Nov	United
30 Nov - 07 Dec	United
05 Nov - 12 Nov	United
05 Nov - 12 Nov	British Airways	direct
30 Nov - 07 Dec	British Airways	direct
17 Nov - 23 Nov	British Airways	direct
12 Nov - 17 Nov	British Airways	direct
26 Nov - 01 Dec	Finnair	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 $519

Return flights