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

Return flights

04 Dec - 11 Dec	TAP
06 Dec - 16 Dec	TAP
02 Dec - 16 Dec	TAP
03 Dec - 17 Dec	Air Canada
10 Dec - 17 Dec	Lufthansa
11 Dec - 18 Dec	TAP
08 Dec - 24 Dec	Delta
01 Dec - 08 Dec	Lufthansa
31 Dec - 14 Jan	SWISS
05 Dec - 10 Dec	Brussels Airlines
01 Dec - 15 Dec	Lufthansa
28 Dec - 17 Jan	SWISS
29 Dec - 17 Jan	SWISS
30 Dec - 24 Jan	SWISS
30 Dec - 11 Jan	SWISS
31 Dec - 07 Jan	Lufthansa
30 Dec - 08 Jan	United
06 Dec - 10 Jan	Spirit Airlines
07 Dec - 10 Jan	British Airways
27 Dec - 09 Jan	Aer Lingus

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.

Book a cheap hotel in Rome

Cheap car rent in Rome

Cheapest return flights from Los Angeles to Rome in December from 338€

Return flights