AirHint found the following cheapest return flights from Iguazu Falls (IGR) to Santiago (SCL) in September 2025 (see full year).

Return flights

17 Sep - 24 Sep	JetSmart
05 Sep - 24 Sep	JetSmart
26 Sep - 15 Oct	JetSmart
15 Sep - 24 Sep	JetSmart
26 Sep - 08 Oct	JetSmart
26 Sep - 09 Oct	JetSmart
05 Sep - 16 Sep	JetSmart
08 Sep - 24 Sep	JetSmart
08 Sep - 10 Sep	Aerolineas Argentinas
05 Sep - 18 Sep	JetSmart
05 Sep - 17 Sep	JetSmart
22 Sep - 24 Sep	JetSmart
17 Sep - 18 Sep	JetSmart
22 Sep - 08 Oct	JetSmart
22 Sep - 09 Oct	JetSmart
20 Sep - 08 Oct	JetSmart
20 Sep - 09 Oct	JetSmart

Also check the deals for one-way flights from Iguazu Falls 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 Iguazu Falls to Santiago in September from 178€

Return flights