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

Return flights

01 Dec - 09 Dec	Air Canada
01 Dec - 09 Dec	Air France	direct
03 Dec - 10 Dec	TAP
02 Dec - 09 Dec	United
16 Dec - 23 Dec	Icelandair
07 Dec - 21 Dec	Brussels Airlines
15 Dec - 22 Dec	Icelandair
17 Dec - 24 Dec	Air Canada
12 Dec - 19 Dec	United
12 Dec - 09 Jan	United
25 Dec - 31 Dec	Air Canada
22 Dec - 07 Jan	British Airways
26 Dec - 01 Jan	TAP
20 Dec - 05 Jan	Icelandair
21 Dec - 06 Jan	Lufthansa
28 Dec - 04 Jan	Lufthansa
20 Dec - 04 Jan	Scandinavian Airlines
18 Dec - 02 Jan	Aer Lingus
19 Dec - 03 Jan	Aer Lingus
20 Dec - 04 Jan	Air France	direct

Also check the deals for one-way flights from Boston to Rome 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 Boston to Rome in December from $359

Return flights