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

One-Way flights

11 Dec	Aerolineas Argentinas
13 Dec	JetSmart	direct
12 Dec	JetSmart	direct
18 Dec	JetSmart	direct
10 Dec	JetSmart	direct
29 Dec	Flybondi
22 Dec	Flybondi
21 Dec	Flybondi
23 Dec	Flybondi
15 Dec	JetSmart	direct

Also check the deals for return 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 one-way flights from Buenos Aires to Santiago in December from 99€

One-Way flights