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

Return flights

23 Dec - 28 Jan	SWISS
23 Dec - 30 Jan	SWISS
11 Dec - 15 Dec	Vueling Airlines
20 Dec - 27 Jan	Vueling Airlines
04 Dec - 06 Dec	Vueling Airlines
22 Dec - 27 Jan	Vueling Airlines
17 Dec - 23 Jan	Delta
19 Dec - 24 Jan	SWISS
20 Dec - 25 Jan	Vueling Airlines
22 Dec - 23 Jan	TAP
21 Dec - 28 Jan	TAP
20 Dec - 24 Jan	Vueling Airlines

Also check the deals for one-way flights from Florence to Boston 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 Boston in December from $599

Return flights