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

Return flights

26 Sep - 04 Oct	LATAM Airlines Group
25 Sep - 15 Oct	LATAM Airlines Group
29 Sep - 10 Oct	LATAM Airlines Group
23 Sep - 24 Sep	LATAM Airlines Group
21 Sep - 28 Sep	Jetstar
19 Sep - 03 Oct	American Airlines
18 Sep - 23 Sep	LATAM Airlines Group
29 Sep - 29 Oct	LATAM Airlines Group
18 Sep - 24 Oct	LATAM Airlines Group
27 Sep - 18 Oct	LATAM Airlines Group
25 Sep - 12 Oct	Qantas
19 Sep - 24 Sep	LATAM Airlines Group
19 Sep - 04 Oct	LATAM Airlines Group
30 Sep - 13 Oct	LATAM Airlines Group
18 Sep - 24 Sep	Qatar Airways
22 Sep - 29 Sep	Qatar Airways
18 Sep - 26 Sep	Air Canada

Also check the deals for one-way flights from Sydney to Sao Paulo 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 Sydney to Sao Paulo in September from $1832

Return flights