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

Return flights

03 Dec - 15 Dec	JetSmart
12 Dec - 15 Dec	JetSmart
15 Dec - 22 Dec	Flybondi
03 Dec - 22 Dec	JetSmart
16 Dec - 22 Dec	JetSmart
12 Dec - 22 Dec	JetSmart
28 Dec - 26 Jan	Flybondi
06 Dec - 22 Dec	JetSmart
14 Dec - 15 Dec	JetSmart
14 Dec - 22 Dec	JetSmart
02 Dec - 15 Dec	JetSmart
15 Dec - 09 Jan	Flybondi
29 Dec - 13 Jan	Flybondi
27 Dec - 09 Jan	JetSmart	direct
31 Dec - 17 Jan	JetSmart	direct
31 Dec - 10 Jan	JetSmart	direct
31 Dec - 09 Jan	JetSmart	direct
31 Dec - 21 Jan	JetSmart	direct
31 Dec - 13 Jan	JetSmart	direct
31 Dec - 12 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 $198

Return flights