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

Return flights

02 Dec - 04 Dec	JetSmart
01 Dec - 04 Dec	JetSmart
03 Dec - 15 Dec	JetSmart
02 Dec - 15 Dec	JetSmart
01 Dec - 15 Dec	JetSmart
08 Dec - 15 Dec	JetSmart
13 Dec - 15 Dec	JetSmart
18 Dec - 05 Jan	JetSmart
08 Dec - 25 Dec	JetSmart
13 Dec - 25 Dec	JetSmart
08 Dec - 27 Dec	JetSmart
22 Dec - 05 Jan	JetSmart
22 Dec - 11 Jan	JetSmart

Also check the deals for one-way flights from Cuzco 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 Cuzco to Buenos Aires in December from $374

Return flights