AirHint found the following cheapest return flights from Santiago (SCL) to Buenos Aires (AEP) in December 2026 (see full year).

Return flights

23 Dec - 26 Dec	JetSmart
23 Dec - 27 Dec	JetSmart
23 Dec - 27 Dec	Sky Airline	direct
25 Dec - 02 Jan	Sky Airline	direct
04 Dec - 10 Dec	JetSmart
20 Dec - 04 Jan	Sky Airline	direct
11 Dec - 26 Dec	JetSmart	direct
04 Dec - 10 Dec	Sky Airline	direct
23 Dec - 26 Dec	Sky Airline	direct

Also check the deals for one-way flights from Santiago to Buenos Aires 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 Santiago to Buenos Aires in December from 148€

Return flights