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

Return flights

09 Apr - 13 Apr	JetSmart
23 Apr - 28 Apr	JetSmart
21 Apr - 25 Apr	Sky Airline
23 Apr - 27 Apr	JetSmart
24 Apr - 26 Apr	JetSmart
30 Apr - 03 May	JetSmart
23 Apr - 26 Apr	Sky Airline
09 Apr - 25 Apr	JetSmart
09 Apr - 16 Apr	JetSmart
23 Apr - 25 Apr	JetSmart
30 Apr - 04 May	JetSmart
23 Apr - 27 Apr	Sky Airline	direct
23 Apr - 03 May	JetSmart
23 Apr - 05 May	JetSmart
23 Apr - 02 May	JetSmart
23 Apr - 10 May	JetSmart
23 Apr - 06 May	JetSmart
23 Apr - 04 May	JetSmart
23 Apr - 07 May	JetSmart
11 Apr - 02 May	JetSmart

Also check the deals for one-way flights from Santiago to Buenos Aires in April.

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 April from $143

Return flights