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

Return flights

06 Dec - 24 Jan	Air Canada
29 Dec - 19 Jan	Air Canada
29 Dec - 15 Jan	Air Canada
29 Dec - 24 Jan	Air France
30 Dec - 18 Jan	Turkish Airlines
31 Dec - 18 Jan	Turkish Airlines
19 Dec - 26 Dec	Ryanair
23 Dec - 20 Jan	Turkish Airlines
26 Dec - 14 Jan	Air Canada
28 Dec - 15 Jan	Air Canada
21 Dec - 15 Jan	Air Canada
15 Dec - 28 Dec	TAP
15 Dec - 24 Dec	Turkish Airlines

Also check the deals for one-way flights from Dublin 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 Dublin to Buenos Aires in December from $1164

Return flights