AirHint found the following cheapest return flights from Sao Paulo (GRU) to Vienna (VIE) in September 2025 (see full year).

Return flights

10 Sep - 24 Sep	Iberia
10 Sep - 17 Sep	Iberia
28 Sep - 11 Oct	Iberia
29 Sep - 13 Oct	Air France
29 Sep - 07 Oct	TAP
10 Sep - 20 Sep	Iberia
08 Sep - 21 Sep	Iberia
23 Sep - 07 Oct	Iberia
08 Sep - 23 Sep	Iberia
19 Sep - 23 Sep	Air France
15 Sep - 29 Sep	Iberia
28 Sep - 05 Oct	KLM
07 Sep - 21 Sep	Air France
18 Sep - 22 Sep	KLM
08 Sep - 17 Sep	SWISS
26 Sep - 19 Oct	SWISS

Also check the deals for one-way flights from Sao Paulo to Vienna 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 Sao Paulo to Vienna in September from $808

Return flights