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

Return flights

02 Dec - 03 Jan	Turkish Airlines
02 Dec - 01 Jan	Turkish Airlines
31 Dec - 30 Jan	Turkish Airlines
03 Dec - 20 Jan	Air Canada
12 Dec - 30 Jan	Turkish Airlines
01 Dec - 26 Jan	Air Canada
02 Dec - 26 Jan	Air Canada
02 Dec - 27 Jan	Air Canada
09 Dec - 16 Dec	LATAM Airlines Group
03 Dec - 12 Jan	Qatar Airways
09 Dec - 16 Jan	Air Canada
14 Dec - 22 Dec	Emirates

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

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 December from $1837

Return flights