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

Return flights

28 Oct - 18 Nov	Ryanair
28 Oct - 13 Nov	Ryanair
27 Oct - 10 Nov	Vueling Airlines
27 Oct - 11 Nov	Vueling Airlines
28 Oct - 14 Nov	Ryanair
27 Oct - 14 Nov	Vueling Airlines
28 Oct - 08 Nov	easyJet
28 Oct - 16 Nov	Ryanair
28 Oct - 15 Nov	Ryanair
29 Oct - 10 Nov	Vueling Airlines
16 Oct - 31 Oct	Ryanair
16 Oct - 23 Oct	Ryanair
14 Oct - 21 Oct	Vueling Airlines
07 Oct - 21 Oct	Vueling Airlines
07 Oct - 29 Oct	Vueling Airlines
16 Oct - 19 Oct	Ryanair
22 Oct - 31 Oct	Vueling Airlines
16 Oct - 30 Oct	Ryanair
16 Oct - 20 Oct	Ryanair
07 Oct - 22 Oct	Vueling Airlines

Also check the deals for one-way flights from Barcelona 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 Barcelona to Buenos Aires in October from $1019

Return flights