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

Return flights

06 Dec - 13 Dec	Air Canada
27 Dec - 27 Jan	TAP
31 Dec - 21 Jan	Turkish Airlines
27 Dec - 20 Jan	TAP
05 Dec - 15 Jan	Aer Lingus
27 Dec - 13 Jan	Turkish Airlines
01 Dec - 01 Jan	TAP
24 Dec - 09 Jan	Turkish Airlines
16 Dec - 08 Jan	Ryanair
28 Dec - 07 Jan	TAP
18 Dec - 11 Jan	Turkish Airlines
14 Dec - 28 Dec	Turkish Airlines
19 Dec - 28 Dec	Turkish Airlines
18 Dec - 21 Dec	SWISS

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 976€

Return flights