AirHint found the following cheapest return flights from Porto Alegre (POA) to Sydney (SYD) in December 2025 (see full year).

Return flights

03 Dec - 20 Jan	Qatar Airways
31 Dec - 07 Jan	LATAM Airlines Group
26 Dec - 31 Dec	LATAM Airlines Group
15 Dec - 05 Jan	Emirates
22 Dec - 09 Jan	LATAM Airlines Group
22 Dec - 05 Jan	LATAM Airlines Group
21 Dec - 30 Jan	GOL Linhas Aéreas

Also check the deals for one-way flights from Porto Alegre 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 Porto Alegre to Sydney in December from 1427€

Return flights