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

Return flights

31 Dec - 08 Jan	British Airways
15 Dec - 23 Dec	Iberia
11 Dec - 18 Dec	Delta
08 Dec - 15 Dec	ITA Airways	direct
08 Dec - 22 Dec	TAP
01 Dec - 11 Dec	Alaska Airlines
16 Dec - 30 Dec	Hawaiian Airlines
13 Dec - 27 Dec	British Airways
11 Dec - 18 Dec	ITA Airways	direct
25 Dec - 17 Jan	British Airways
27 Dec - 03 Jan	TAP
14 Dec - 20 Dec	SWISS
22 Dec - 27 Dec	Scandinavian Airlines
08 Dec - 01 Jan	TAP
22 Dec - 17 Jan	TAP
26 Dec - 04 Jan	Scandinavian Airlines
28 Dec - 03 Jan	Scandinavian Airlines
21 Dec - 10 Jan	British Airways
25 Dec - 05 Jan	Lufthansa
27 Dec - 03 Jan	ITA Airways	direct

Also check the deals for one-way flights from San Francisco 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 San Francisco to Rome in December from 414€

Return flights