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

Return flights

28 Oct - 04 Nov	Qantas
27 Oct - 03 Nov	Qantas
22 Oct - 19 Nov	Air Canada
21 Oct - 18 Nov	Air Canada
30 Oct - 20 Nov	Air Canada
28 Oct - 29 Nov	Air Canada
10 Oct - 24 Oct	Qantas
31 Oct - 28 Nov	Air Canada
31 Oct - 21 Nov	Air Canada
15 Oct - 31 Oct	Qantas
12 Oct - 09 Nov	LATAM Airlines Group
14 Oct - 09 Nov	Air Canada
15 Oct - 29 Oct	Air Canada
14 Oct - 28 Oct	Air Canada
15 Oct - 28 Oct	Air Canada
13 Oct - 22 Oct	LATAM Airlines Group
08 Oct - 22 Oct	LATAM Airlines Group
01 Oct - 21 Oct	LATAM Airlines Group
07 Oct - 29 Oct	Turkish Airlines
02 Oct - 07 Oct	Qantas

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 1097€

Return flights