Cheapest return flights from Sydney to Buenos Aires in December from $2208

Best time to book flights for Sydney (SYD) to Buenos Aires (AEP) flights at AirHint

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

Return flights

04 Dec - 15 Dec LATAM Airlines Group
10 Dec - 30 Jan LATAM Airlines Group
03 Dec - 10 Jan LATAM Airlines Group
24 Dec - 12 Jan LATAM Airlines Group
26 Dec - 10 Jan LATAM Airlines Group
17 Dec - 06 Jan LATAM Airlines Group
08 Dec - 11 Jan LATAM Airlines Group
27 Dec - 31 Jan LATAM Airlines Group
26 Dec - 03 Jan Qatar Airways
26 Dec - 05 Jan Qatar Airways
15 Dec - 10 Jan LATAM Airlines Group

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

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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires