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

Return flights

05 Sep - 26 Sep	LATAM Airlines Group
01 Sep - 29 Sep	LATAM Airlines Group
23 Sep - 06 Oct	LATAM Airlines Group
09 Sep - 22 Sep	LATAM Airlines Group
25 Sep - 06 Oct	LATAM Airlines Group
24 Sep - 06 Oct	LATAM Airlines Group
03 Sep - 10 Sep	Emirates
15 Sep - 29 Sep	Emirates

Also check the deals for one-way flights from Buenos Aires to Sydney in September.

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 Buenos Aires to Sydney in September from 1583€

Return flights