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

Return flights

10 Dec - 17 Dec	Lufthansa
28 Dec - 06 Jan	Lufthansa
03 Dec - 17 Dec	Brussels Airlines
02 Dec - 16 Dec	SWISS
30 Dec - 13 Jan	SWISS
04 Dec - 09 Dec	TAP
30 Dec - 24 Jan	Lufthansa
14 Dec - 23 Dec	SWISS
28 Dec - 11 Jan	Lufthansa
02 Dec - 07 Dec	British Airways
07 Dec - 21 Dec	Iberia
09 Dec - 22 Dec	TAP
03 Dec - 08 Dec	Air Canada
28 Dec - 17 Jan	Lufthansa
16 Dec - 06 Jan	SWISS
31 Dec - 09 Jan	SWISS
25 Dec - 17 Jan	Lufthansa
15 Dec - 10 Jan	Lufthansa
25 Dec - 06 Jan	Lufthansa
05 Dec - 28 Dec	Scandinavian Airlines

Also check the deals for one-way flights from Los Angeles 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 Los Angeles to Rome in December from 366€

Return flights