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

Return flights

28 Oct - 13 Nov	Ryanair
20 Oct - 10 Nov	Ryanair
29 Oct - 26 Nov	Vueling Airlines
09 Oct - 13 Oct	Vueling Airlines
10 Oct - 22 Oct	Vueling Airlines
31 Oct - 15 Nov	TAP
20 Oct - 25 Nov	Ryanair
06 Oct - 20 Oct	Vueling Airlines
29 Oct - 01 Nov	Vueling Airlines
02 Oct - 31 Oct	Ryanair
04 Oct - 07 Oct	Ryanair
06 Oct - 26 Oct	TAP
24 Oct - 27 Oct	Turkish Airlines
01 Oct - 26 Oct	Ryanair
14 Oct - 27 Oct	Aer Lingus
02 Oct - 09 Oct	Ryanair
30 Oct - 13 Nov	Aer Lingus
24 Oct - 01 Nov	TAP
26 Oct - 08 Nov	TAP
23 Oct - 01 Nov	SWISS

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 $1012

Return flights