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

Return flights

30 Dec - 19 Jan	Turkish Airlines
29 Dec - 29 Jan	Turkish Airlines
04 Dec - 16 Jan	Aer Lingus
11 Dec - 25 Jan	Ryanair
05 Dec - 19 Dec	Turkish Airlines
15 Dec - 25 Jan	Turkish Airlines
08 Dec - 28 Dec	Aer Lingus
15 Dec - 16 Jan	Turkish Airlines
16 Dec - 17 Jan	Aer Lingus
13 Dec - 20 Dec	Aer Lingus
15 Dec - 12 Jan	Turkish Airlines
02 Dec - 15 Dec	TAP
29 Dec - 18 Jan	Turkish Airlines
14 Dec - 07 Jan	Turkish Airlines
05 Dec - 22 Dec	TAP
14 Dec - 29 Dec	Air Canada
13 Dec - 23 Dec	Turkish Airlines
15 Dec - 23 Dec	TAP
19 Dec - 29 Dec	TAP

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 1120€

Return flights