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

Return flights

23 Aug - 29 Sep	KLM
26 Aug - 24 Sep	Air France
27 Aug - 27 Sep	Air France
21 Aug - 23 Sep	KLM
19 Aug - 23 Sep	Air France
20 Aug - 25 Sep	KLM
27 Aug - 15 Sep	Delta
24 Aug - 07 Sep	Delta
22 Aug - 03 Sep	Delta
24 Aug - 22 Sep	Delta
23 Aug - 30 Aug	Delta
19 Aug - 30 Aug	Delta
21 Aug - 30 Aug	Delta
24 Aug - 30 Aug	Delta
18 Aug - 30 Aug	Delta
22 Aug - 30 Aug	Delta
19 Aug - 25 Aug	Delta
21 Aug - 25 Aug	Delta
26 Aug - 30 Aug	Delta
20 Aug - 25 Aug	Delta

Also check the deals for one-way flights from Barcelona to Buenos Aires in August.

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 August from 687€

Return flights