AirHint found the following cheapest return flights from London (LHR) to Florence (FLR) in December 2025 (see full year).

Return flights

10 Dec - 16 Dec	Vueling Airlines
10 Dec - 17 Dec	Vueling Airlines
06 Dec - 07 Dec	Lufthansa
11 Dec - 15 Dec	Lufthansa
12 Dec - 14 Dec	SWISS
09 Dec - 14 Dec	Lufthansa
06 Dec - 27 Dec	Lufthansa
09 Dec - 13 Dec	Lufthansa
11 Dec - 13 Dec	Lufthansa
04 Dec - 07 Dec	Lufthansa
12 Dec - 08 Jan	SWISS
12 Dec - 11 Jan	SWISS
01 Dec - 02 Jan	Lufthansa
27 Dec - 02 Jan	Lufthansa
27 Dec - 01 Jan	Lufthansa
26 Dec - 01 Jan	Austrian Airlines
26 Dec - 02 Jan	Austrian Airlines
29 Dec - 02 Jan	Lufthansa
29 Dec - 05 Jan	Lufthansa
20 Dec - 08 Jan	Vueling Airlines

Also check the deals for one-way flights from London to Florence in December.

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 London to Florence in December from $197

Return flights