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

Return flights

31 Dec - 19 Jan	Qatar Airways
01 Dec - 16 Jan	Qatar Airways
05 Dec - 04 Jan	LATAM Airlines Group
01 Dec - 15 Jan	LATAM Airlines Group
04 Dec - 13 Jan	Qatar Airways
08 Dec - 08 Jan	Qatar Airways
16 Dec - 09 Jan	Qatar Airways
19 Dec - 09 Jan	Qatar Airways

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

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 Brisbane to Buenos Aires in December from $2589

Return flights