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

Return flights

27 Aug - 24 Sep	ITA Airways
29 Aug - 27 Sep	easyJet
30 Aug - 30 Sep	Royal Air Maroc
26 Aug - 14 Sep	Iberia
30 Aug - 12 Sep	Avianca
29 Aug - 12 Sep	Vueling Airlines
26 Aug - 24 Sep	TAP
25 Aug - 05 Sep	TAP
31 Aug - 14 Sep	LATAM Airlines Group
25 Aug - 30 Sep	TAP
25 Aug - 31 Aug	Air France
25 Aug - 28 Aug	TAP
28 Aug - 31 Aug	TAP
26 Aug - 31 Aug	TAP
24 Aug - 30 Aug	TAP
26 Aug - 29 Aug	TAP
27 Aug - 29 Aug	Avianca
27 Aug - 31 Aug	Vueling Airlines
25 Aug - 29 Aug	TAP
27 Aug - 30 Aug	Emirates

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 $1157

Return flights