AirHint found the following cheapest return flights from Rio De Janeiro (SDU) to Sydney (SYD) in December 2025 (see full year).

Return flights

03 Dec - 10 Dec	Qatar Airways
04 Dec - 11 Dec	LATAM Airlines Group
08 Dec - 24 Dec	Azul Airlines
05 Dec - 12 Dec	Azul Airlines
29 Dec - 20 Jan	Azul Airlines
24 Dec - 14 Jan	Qatar Airways
17 Dec - 12 Jan	Qatar Airways
25 Dec - 01 Jan	LATAM Airlines Group
24 Dec - 13 Jan	Qatar Airways
20 Dec - 27 Jan	Qatar Airways
27 Dec - 27 Jan	Qatar Airways
20 Dec - 12 Jan	Qatar Airways
04 Dec - 18 Dec	Qatar Airways
01 Dec - 13 Dec	Qatar Airways
04 Dec - 20 Dec	Azul Airlines
28 Dec - 05 Jan	LATAM Airlines Group
26 Dec - 02 Jan	Qatar Airways

Also check the deals for one-way flights from Rio De Janeiro to Sydney 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 Rio De Janeiro to Sydney in December from 1839€

Return flights