Cheapest return flights from Buenos Aires to Sydney in December from $2124

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

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

Return flights

01 Dec - 31 Jan LATAM Airlines Group
12 Dec - 12 Jan LATAM Airlines Group
29 Dec - 19 Jan LATAM Airlines Group
26 Dec - 23 Jan LATAM Airlines Group
28 Dec - 26 Jan LATAM Airlines Group
27 Dec - 20 Jan LATAM Airlines Group
23 Dec - 30 Dec LATAM Airlines Group
26 Dec - 24 Jan LATAM Airlines Group
25 Dec - 22 Jan JetSmart
20 Dec - 15 Jan LATAM Airlines Group
11 Dec - 14 Dec LATAM Airlines Group
01 Dec - 31 Dec Qatar Airways
05 Dec - 23 Jan Qatar Airways

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

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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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