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

Return flights

23 Oct - 17 Nov	LATAM Airlines Group
15 Oct - 15 Nov	Jetstar
15 Oct - 05 Nov	Air Canada
22 Oct - 29 Oct	Air Canada
22 Oct - 03 Nov	Air Canada
14 Oct - 21 Oct	Air Canada
23 Oct - 05 Nov	Air Canada
21 Oct - 04 Nov	Air Canada
20 Oct - 04 Nov	Air Canada
19 Oct - 04 Nov	Qantas
22 Oct - 06 Nov	Qantas
15 Oct - 30 Oct	Air Canada
17 Oct - 15 Nov	Air Canada
01 Oct - 21 Oct	Turkish Airlines
13 Oct - 20 Oct	Qatar Airways

Also check the deals for one-way flights from Sydney to Sao Paulo in October.

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 October from $1103

Return flights