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

Return flights

07 Oct - 18 Oct	LATAM Airlines Group
22 Oct - 06 Nov	American Airlines
07 Oct - 17 Oct	LATAM Airlines Group
21 Oct - 21 Nov	LATAM Airlines Group
09 Oct - 25 Oct	Turkish Airlines
02 Oct - 14 Oct	Turkish Airlines
02 Oct - 13 Oct	Turkish Airlines
26 Oct - 12 Nov	Turkish Airlines
01 Oct - 10 Nov	Turkish Airlines
15 Oct - 13 Nov	Turkish Airlines
02 Oct - 17 Oct	LATAM Airlines Group
01 Oct - 17 Oct	LATAM Airlines Group
15 Oct - 22 Oct	LATAM Airlines Group
04 Oct - 27 Oct	Qantas
01 Oct - 31 Oct	LATAM Airlines Group
04 Oct - 12 Nov	British Airways

Also check the deals for one-way flights from Sydney to Buenos Aires 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 Buenos Aires in October from $1682

Return flights