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

Return flights

24 Sep - 08 Oct	Flybondi
30 Sep - 08 Oct	Flybondi
03 Sep - 10 Sep	Flybondi
03 Sep - 15 Sep	Flybondi
23 Sep - 30 Sep	Flybondi
24 Sep - 09 Oct	Flybondi
02 Sep - 13 Sep	Flybondi
13 Sep - 24 Sep	Sky Airline	direct
08 Sep - 22 Sep	Sky Airline	direct
21 Sep - 02 Oct	Sky Airline	direct
18 Sep - 28 Sep	Sky Airline	direct
12 Sep - 16 Sep	Flybondi
30 Sep - 12 Oct	Sky Airline	direct
29 Sep - 10 Oct	Sky Airline	direct
17 Sep - 02 Oct	Flybondi
06 Sep - 18 Sep	Sky Airline	direct
04 Sep - 18 Sep	Flybondi
27 Sep - 04 Oct	Sky Airline	direct
19 Sep - 02 Oct	Sky Airline	direct
25 Sep - 05 Oct	JetSmart	direct

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

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 September from 158€

Return flights