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	TAP
01 Dec - 09 Dec	Air France	direct
08 Dec - 15 Dec	Icelandair
28 Dec - 06 Jan	Lufthansa
12 Dec - 26 Dec	TAP
01 Dec - 01 Jan	Delta
20 Dec - 08 Jan	Icelandair
17 Dec - 23 Dec	British Airways
22 Dec - 01 Jan	Delta
30 Dec - 04 Jan	Iberia
31 Dec - 04 Jan	British Airways
23 Dec - 03 Jan	Iberia
19 Dec - 23 Dec	Icelandair
27 Dec - 03 Jan	British Airways
18 Dec - 25 Dec	TAP
26 Dec - 31 Dec	TAP
17 Dec - 23 Dec	Delta	direct
18 Dec - 23 Dec	TAP
29 Dec - 02 Jan	Icelandair
25 Dec - 02 Jan	Icelandair

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 271€

Return flights