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

Return flights

09 Sep - 07 Oct	Qatar Airways
10 Sep - 08 Oct	Qatar Airways
07 Sep - 08 Oct	Qatar Airways
07 Sep - 06 Oct	Qatar Airways
08 Sep - 08 Oct	Qatar Airways
08 Sep - 06 Oct	Qatar Airways
09 Sep - 08 Oct	Qatar Airways
04 Sep - 03 Oct	Qatar Airways
08 Sep - 07 Oct	Qatar Airways
10 Sep - 09 Oct	Qatar Airways
12 Sep - 28 Sep	Qatar Airways
08 Sep - 22 Sep	Qatar Airways
10 Sep - 25 Sep	Qatar Airways
05 Sep - 17 Sep	Qatar Airways
02 Sep - 16 Sep	Qatar Airways
01 Sep - 21 Sep	Qatar Airways
09 Sep - 12 Sep	LATAM Airlines Group
19 Sep - 28 Sep	Qatar Airways
13 Sep - 20 Sep	Qatar Airways
18 Sep - 21 Sep	Qatar Airways

Also check the deals for one-way flights from Sao Paulo to Sydney 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 Sydney in September from $1426

Return flights