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

Return flights

14 Dec - 17 Dec	Volotea
16 Dec - 23 Dec	Air France
15 Dec - 18 Dec	Air Serbia
17 Dec - 24 Dec	Air France
14 Dec - 20 Dec	Volotea
17 Dec - 20 Dec	Vueling Airlines
17 Dec - 18 Dec	Vueling Airlines
24 Dec - 31 Dec	Vueling Airlines
15 Dec - 16 Dec	Volotea
15 Dec - 19 Dec	Air Serbia
22 Dec - 03 Jan	Air Serbia
25 Dec - 14 Jan	Vueling Airlines
22 Dec - 02 Jan	Air Serbia
22 Dec - 04 Jan	Air Serbia
25 Dec - 13 Jan	Vueling Airlines
20 Dec - 05 Jan	Volotea
13 Dec - 04 Jan	Vueling Airlines
24 Dec - 02 Jan	Vueling Airlines
25 Dec - 12 Jan	Vueling Airlines
30 Dec - 04 Jan	Volotea

Also check the deals for one-way flights from Florence to Lisbon 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 Florence to Lisbon in December from $208

Return flights