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

Return flights

08 Dec - 15 Dec	JetSmart
13 Dec - 15 Dec	JetSmart
14 Dec - 15 Dec	JetSmart
11 Dec - 15 Dec	JetSmart
07 Dec - 15 Dec	JetSmart
12 Dec - 15 Dec	JetSmart
08 Dec - 11 Dec	JetSmart	direct
08 Dec - 15 Dec	JetSmart	direct
13 Dec - 15 Dec	JetSmart	direct
14 Dec - 15 Dec	JetSmart	direct
28 Dec - 18 Jan	JetSmart
13 Dec - 01 Jan	JetSmart	direct
14 Dec - 01 Jan	JetSmart	direct
11 Dec - 01 Jan	JetSmart	direct
13 Dec - 03 Jan	JetSmart	direct
14 Dec - 03 Jan	JetSmart	direct
18 Dec - 01 Jan	JetSmart	direct
18 Dec - 07 Jan	JetSmart	direct
12 Dec - 01 Jan	JetSmart	direct
18 Dec - 03 Jan	JetSmart	direct

Also check the deals for one-way flights from Buenos Aires to Santiago 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 Buenos Aires to Santiago in December from 146€

Return flights