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

Return flights

04 Sep - 29 Sep	LATAM Airlines Group
11 Sep - 15 Sep	LATAM Airlines Group
02 Sep - 13 Oct	Turkish Airlines
05 Sep - 22 Oct	Turkish Airlines
07 Sep - 22 Oct	Turkish Airlines
08 Sep - 21 Oct	Qatar Airways
04 Sep - 04 Oct	LATAM Airlines Group
16 Sep - 07 Oct	LATAM Airlines Group
26 Sep - 24 Oct	Qatar Airways
12 Sep - 07 Oct	Turkish Airlines
26 Sep - 03 Oct	LATAM Airlines Group
13 Sep - 08 Oct	LATAM Airlines Group
25 Sep - 30 Sep	Turkish Airlines
01 Sep - 08 Sep	Qatar Airways
05 Sep - 23 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 $1639

Return flights