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

Return flights

03 Dec - 07 Dec	TAP
07 Dec - 14 Dec	TAP
05 Dec - 14 Dec	TAP
05 Dec - 12 Dec	TAP
01 Dec - 09 Dec	TAP
01 Dec - 10 Dec	TAP
03 Dec - 12 Dec	TAP
04 Dec - 11 Dec	TAP
04 Dec - 14 Dec	TAP
01 Dec - 09 Dec	Air France	direct
28 Dec - 06 Jan	Austrian Airlines
30 Dec - 24 Jan	Air Canada
29 Dec - 24 Jan	Lufthansa
14 Dec - 07 Jan	Lufthansa
15 Dec - 10 Jan	Aer Lingus
16 Dec - 06 Jan	Iberia
21 Dec - 10 Jan	Icelandair
25 Dec - 17 Jan	Icelandair
01 Dec - 01 Jan	Delta
20 Dec - 08 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 297€

Return flights