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

Return flights

23 Dec - 14 Jan	Turkish Airlines
06 Dec - 28 Dec	LATAM Airlines Group
01 Dec - 13 Dec	LATAM Airlines Group
19 Dec - 09 Jan	Turkish Airlines
13 Dec - 22 Dec	Iberia
13 Dec - 16 Jan	SWISS
25 Dec - 10 Jan	Austrian Airlines
27 Dec - 11 Jan	LATAM Airlines Group
23 Dec - 23 Jan	Air Canada
22 Dec - 13 Jan	SWISS
18 Dec - 16 Jan	LATAM Airlines Group
13 Dec - 17 Jan	LATAM Airlines Group
15 Dec - 28 Dec	SWISS
06 Dec - 24 Dec	Air Canada
18 Dec - 01 Jan	SWISS

Also check the deals for one-way flights from Vienna 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 Vienna to Buenos Aires in December from 1039€

Return flights