AirHint found the following cheapest return flights from Sydney (SYD) to Buenos Aires (EZE) in December 2025 (see full year).

Return flights

03 Dec - 30 Jan	Turkish Airlines
02 Dec - 27 Dec	Turkish Airlines
02 Dec - 02 Jan	Turkish Airlines
02 Dec - 12 Dec	Turkish Airlines
03 Dec - 12 Jan	Turkish Airlines
02 Dec - 12 Jan	Turkish Airlines
04 Dec - 11 Dec	Turkish Airlines
28 Dec - 28 Jan	Turkish Airlines
04 Dec - 05 Jan	Turkish Airlines
02 Dec - 15 Jan	Turkish Airlines
02 Dec - 06 Jan	Turkish Airlines
03 Dec - 17 Dec	LATAM Airlines Group
01 Dec - 31 Dec	LATAM Airlines Group
12 Dec - 24 Dec	Jetstar
03 Dec - 08 Jan	Turkish Airlines
01 Dec - 14 Jan	Emirates
13 Dec - 20 Dec	LATAM Airlines Group
10 Dec - 25 Dec	LATAM Airlines Group
19 Dec - 27 Dec	LATAM Airlines Group
01 Dec - 23 Dec	United

Also check the deals for one-way flights from Sydney to Buenos Aires 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 Buenos Aires in December from 1206€

Return flights