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

Return flights

01 Oct - 10 Nov	Ryanair
06 Oct - 20 Oct	Ryanair
06 Oct - 13 Oct	Ryanair
05 Oct - 12 Oct	Ryanair
01 Oct - 21 Oct	Ryanair
27 Oct - 14 Nov	Aer Lingus
20 Oct - 10 Nov	Aer Lingus
28 Oct - 04 Nov	Turkish Airlines
14 Oct - 27 Oct	Ryanair
14 Oct - 18 Oct	Ryanair
15 Oct - 22 Oct	Aer Lingus
20 Oct - 07 Nov	Ryanair
09 Oct - 12 Oct	Ryanair
30 Oct - 14 Nov	Ryanair
01 Oct - 26 Oct	Ryanair
21 Oct - 29 Nov	Ryanair
23 Oct - 28 Oct	Ryanair
26 Oct - 16 Nov	TAP
26 Oct - 08 Nov	TAP
20 Oct - 06 Nov	Ryanair

Also check the deals for one-way flights from Dublin to Buenos Aires in October.

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 October from 942€

Return flights