Cheapest one-way flights from Sydney to Buenos Aires in September from 671€

AirHint found the following cheapest one-way flights from Sydney (SYD) to Buenos Aires (AEP) in September 2025 (see full year).

One-Way flights

10 Sep Jetstar
17 Sep Jetstar
02 Sep LATAM Airlines Group
04 Sep LATAM Airlines Group
15 Sep Qantas
30 Sep LATAM Airlines Group
24 Sep LATAM Airlines Group
29 Sep Jetstar
28 Sep Qatar Airways
19 Sep LATAM Airlines Group

Also check the deals for return flights from Sydney to Buenos Aires in September.

Skyscanner

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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