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 - 14 Nov	Delta
24 Oct - 07 Nov	Delta
24 Oct - 18 Nov	Delta
29 Oct - 17 Nov	Delta
29 Oct - 12 Nov	Delta
29 Oct - 11 Nov	Delta
23 Oct - 24 Nov	Delta
29 Oct - 14 Nov	Delta
23 Oct - 16 Nov	Delta
24 Oct - 27 Oct	Delta
23 Oct - 26 Oct	Delta
23 Oct - 27 Oct	Delta
23 Oct - 30 Oct	Delta
25 Oct - 27 Oct	Delta
26 Oct - 27 Oct	Delta
27 Oct - 30 Oct	Ryanair
27 Oct - 28 Oct	Delta
24 Oct - 31 Oct	Delta
27 Oct - 31 Oct	Avianca

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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires

Cheapest return flights from Barcelona to Buenos Aires in October from $860

Return flights