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

Return flights

25 Oct - 01 Nov	LATAM Airlines Group
30 Oct - 19 Nov	Air Canada
26 Oct - 12 Nov	LATAM Airlines Group
12 Oct - 17 Oct	LATAM Airlines Group
04 Oct - 12 Nov	LATAM Airlines Group
14 Oct - 26 Oct	LATAM Airlines Group
14 Oct - 21 Oct	LATAM Airlines Group
24 Oct - 18 Nov	Qantas
23 Oct - 22 Nov	LATAM Airlines Group
08 Oct - 22 Oct	LATAM Airlines Group
21 Oct - 28 Nov	LATAM Airlines Group
15 Oct - 15 Nov	Turkish Airlines
01 Oct - 01 Nov	LATAM Airlines Group
17 Oct - 14 Nov	Qantas
01 Oct - 22 Oct	Qantas
11 Oct - 20 Oct	LATAM Airlines Group
01 Oct - 25 Oct	Qantas
04 Oct - 20 Oct	LATAM Airlines Group
01 Oct - 14 Oct	Qantas
18 Oct - 25 Oct	Emirates

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 1188€

Return flights