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

Return flights

24 Oct - 08 Nov	Delta
24 Oct - 07 Nov	Delta
24 Oct - 18 Nov	Delta
31 Oct - 13 Nov	Delta
31 Oct - 08 Nov	Delta
31 Oct - 26 Nov	Delta
29 Oct - 08 Nov	Delta
24 Oct - 05 Nov	Delta
31 Oct - 07 Nov	Delta
24 Oct - 14 Nov	Delta
24 Oct - 26 Oct	Delta
24 Oct - 27 Oct	Delta
24 Oct - 28 Oct	Delta
24 Oct - 30 Oct	Delta
26 Oct - 27 Oct	Delta
27 Oct - 31 Oct	Ryanair
26 Oct - 28 Oct	Delta
24 Oct - 31 Oct	Iberia
27 Oct - 30 Oct	Delta
28 Oct - 28 Oct	Iberia	direct

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 $860

Return flights