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

Return flights

11 Dec - 15 Dec	Flybondi
10 Dec - 15 Dec	JetSmart
11 Dec - 28 Dec	Flybondi
01 Dec - 15 Jan	Flybondi
11 Dec - 13 Dec	JetSmart
25 Dec - 22 Jan	Flybondi
25 Dec - 14 Jan	Flybondi
11 Dec - 20 Dec	Flybondi
01 Dec - 11 Dec	Flybondi
12 Dec - 15 Dec	Flybondi
02 Dec - 06 Dec	Flybondi
11 Dec - 16 Dec	Flybondi
12 Dec - 14 Dec	Flybondi
13 Dec - 22 Jan	JetSmart	direct
25 Dec - 06 Jan	Flybondi
16 Dec - 02 Jan	JetSmart	direct
16 Dec - 04 Jan	JetSmart	direct
16 Dec - 06 Jan	JetSmart	direct
19 Dec - 02 Jan	JetSmart	direct
19 Dec - 08 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 $179

Return flights