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

Return flights

03 Sep - 10 Sep	LATAM Airlines Group
04 Sep - 18 Sep	LATAM Airlines Group
03 Sep - 18 Oct	Qantas
04 Sep - 19 Sep	LATAM Airlines Group
20 Sep - 02 Oct	LATAM Airlines Group
05 Sep - 19 Sep	LATAM Airlines Group
17 Sep - 24 Sep	Emirates
19 Sep - 27 Sep	Emirates
17 Sep - 01 Oct	Emirates

Also check the deals for one-way flights from Melbourne to Buenos Aires 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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires

Cheapest return flights from Melbourne to Buenos Aires in September from $1570

Return flights