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

Return flights

02 Sep - 05 Sep	JetSmart
02 Sep - 19 Sep	JetSmart
07 Sep - 19 Sep	JetSmart
29 Sep - 10 Oct	JetSmart
29 Sep - 01 Oct	JetSmart
02 Sep - 14 Sep	JetSmart
07 Sep - 14 Sep	JetSmart
07 Sep - 26 Sep	JetSmart
28 Sep - 10 Oct	JetSmart
28 Sep - 01 Oct	JetSmart
02 Sep - 15 Sep	JetSmart
07 Sep - 15 Sep	JetSmart
29 Sep - 20 Oct	JetSmart
28 Sep - 29 Sep	JetSmart
22 Sep - 10 Oct	JetSmart
22 Sep - 01 Oct	JetSmart
02 Sep - 17 Sep	JetSmart
26 Sep - 10 Oct	JetSmart
26 Sep - 01 Oct	JetSmart
21 Sep - 10 Oct	JetSmart

Also check the deals for one-way flights from Asuncion 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 Asuncion to Santiago in September from 230€

Return flights