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

Return flights

18 Sep - 25 Sep	Qantas
25 Sep - 15 Oct	LATAM Airlines Group
19 Sep - 03 Oct	Jetstar
24 Sep - 28 Sep	LATAM Airlines Group
23 Sep - 10 Oct	LATAM Airlines Group
27 Sep - 18 Oct	LATAM Airlines Group
18 Sep - 24 Oct	LATAM Airlines Group
30 Sep - 14 Oct	LATAM Airlines Group
25 Sep - 12 Oct	Qantas
18 Sep - 24 Sep	LATAM Airlines Group
21 Sep - 10 Oct	LATAM Airlines Group
24 Sep - 04 Oct	LATAM Airlines Group
24 Sep - 09 Oct	LATAM Airlines Group
28 Sep - 28 Sep	LATAM Airlines Group
18 Sep - 26 Sep	Air Canada
19 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 1524€

Return flights