AirHint found the following cheapest return flights from Rome (ROM) to Buenos Aires (AEP) in December 2025 (see full year).

Return flights

02 Dec - 10 Dec	LATAM Airlines Group
03 Dec - 08 Dec	Air Canada
09 Dec - 15 Dec	Air Europa
04 Dec - 08 Dec	Air Canada
05 Dec - 11 Dec	LATAM Airlines Group
31 Dec - 30 Jan	LATAM Airlines Group
15 Dec - 27 Jan	Air Canada
05 Dec - 12 Dec	LATAM Airlines Group
09 Dec - 10 Jan	Wizz Air Malta
02 Dec - 09 Dec	Air Canada
04 Dec - 12 Jan	Air Canada
01 Dec - 10 Dec	LATAM Airlines Group
03 Dec - 18 Dec	SWISS
09 Dec - 16 Dec	LATAM Airlines Group
31 Dec - 19 Jan	SWISS
28 Dec - 16 Jan	LATAM Airlines Group
14 Dec - 11 Jan	Air Canada
05 Dec - 02 Jan	LATAM Airlines Group
28 Dec - 22 Jan	SWISS
28 Dec - 13 Jan	Ryanair

Also check the deals for one-way flights from Rome to Buenos Aires 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 Rome to Buenos Aires in December from $960

Return flights