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

Return flights

01 Dec - 12 Dec	JetSmart
10 Dec - 19 Dec	JetSmart
11 Dec - 19 Dec	JetSmart
08 Dec - 19 Dec	JetSmart
15 Dec - 19 Dec	JetSmart
03 Dec - 19 Dec	JetSmart
04 Dec - 19 Dec	JetSmart
02 Dec - 19 Dec	JetSmart
16 Dec - 19 Dec	JetSmart
18 Dec - 19 Dec	JetSmart
24 Dec - 26 Jan	Sky Airline	direct
31 Dec - 08 Jan	Sky Airline	direct
22 Dec - 08 Jan	Sky Airline	direct
01 Dec - 01 Jan	JetSmart
31 Dec - 14 Jan	Sky Airline	direct
25 Dec - 07 Jan	Sky Airline	direct
25 Dec - 06 Jan	Flybondi
25 Dec - 08 Jan	Flybondi
13 Dec - 22 Jan	JetSmart	direct
12 Dec - 10 Jan	Flybondi

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 123€

Return flights