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

Return flights

25 Oct - 12 Nov	Delta
25 Oct - 10 Nov	Delta
13 Oct - 23 Oct	Vueling Airlines
27 Oct - 12 Nov	Delta
13 Oct - 26 Oct	Vueling Airlines
25 Oct - 31 Oct	Delta
25 Oct - 09 Nov	Delta
01 Oct - 31 Oct	Delta
01 Oct - 21 Oct	Delta
22 Oct - 29 Oct	Delta
27 Oct - 14 Nov	Delta
22 Oct - 06 Nov	Delta
22 Oct - 07 Nov	Delta
01 Oct - 09 Nov	Delta
01 Oct - 18 Nov	Delta
22 Oct - 09 Nov	Delta
01 Oct - 24 Oct	Delta
22 Oct - 27 Oct	Delta
01 Oct - 15 Oct	Delta
08 Oct - 13 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 800€

Return flights