AirHint found the following cheapest return flights from Barcelona (BCN) to Buenos Aires (AEP) in May 2026 (see full year).

Return flights

04 May - 18 May	Avianca
01 May - 08 May	Avianca
13 May - 20 May	Avianca
05 May - 29 May	Avianca
03 May - 29 May	Avianca
03 May - 11 May	Avianca
04 May - 11 May	Avianca
04 May - 21 May	Avianca
04 May - 28 May	Avianca
10 May - 29 May	Avianca
25 May - 17 Jun	Avianca
25 May - 02 Jun	Royal Air Maroc
19 May - 21 Jun	Vueling Airlines
25 May - 18 Jun	Avianca
25 May - 19 Jun	Avianca
19 May - 08 Jun	Avianca
13 May - 15 Jun	SWISS
23 May - 04 Jun	LATAM Airlines Group
04 May - 08 Jun	SWISS
05 May - 30 Jun	Avianca

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

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 May from 816€

Return flights