AirHint found the following cheapest return flights from Rio De Janeiro (SDU) to Santiago (SCL) in September 2025 (see full year).

Return flights

24 Sep - 29 Sep	Azul Airlines
01 Sep - 06 Sep	Azul Airlines
29 Sep - 03 Oct	Azul Airlines
25 Sep - 29 Sep	Azul Airlines
15 Sep - 20 Sep	Azul Airlines
15 Sep - 22 Oct	Azul Airlines
15 Sep - 21 Sep	Azul Airlines
17 Sep - 21 Sep	Azul Airlines
17 Sep - 23 Sep	Azul Airlines
18 Sep - 25 Sep	Azul Airlines
08 Sep - 15 Sep	Azul Airlines
04 Sep - 07 Sep	Azul Airlines
25 Sep - 01 Oct	LATAM Airlines Group
20 Sep - 04 Oct	Azul Airlines

Also check the deals for one-way flights from Rio De Janeiro 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 Rio De Janeiro to Santiago in September from $296

Return flights