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

Return flights

02 Dec - 09 Dec	LATAM Airlines Group
05 Dec - 13 Jan	Air Canada
02 Dec - 18 Jan	Air Canada
05 Dec - 17 Jan	Air Canada
04 Dec - 08 Dec	Air Canada
03 Dec - 18 Jan	LATAM Airlines Group
05 Dec - 12 Dec	LATAM Airlines Group
02 Dec - 03 Dec	LATAM Airlines Group
03 Dec - 04 Dec	LATAM Airlines Group
08 Dec - 16 Dec	LATAM Airlines Group
05 Dec - 12 Jan	TAP
05 Dec - 18 Jan	Air Europa
02 Dec - 05 Dec	LATAM Airlines Group
05 Dec - 11 Dec	LATAM Airlines Group
05 Dec - 15 Jan	TAP
02 Dec - 07 Dec	LATAM Airlines Group
05 Dec - 14 Jan	LATAM Airlines Group
02 Dec - 23 Dec	LATAM Airlines Group
05 Dec - 16 Jan	LATAM Airlines Group
05 Dec - 10 Jan	TAP

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 $942

Return flights