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

Return flights

10 Mar - 08 Apr	ITA Airways
13 Mar - 08 Apr	ITA Airways
07 Mar - 29 Mar	Iberia
23 Mar - 13 Apr	Avianca
07 Mar - 24 Mar	Iberia
14 Mar - 29 Mar	Iberia
07 Mar - 22 Mar	Iberia
05 Mar - 27 Mar	Iberia
12 Mar - 26 Mar	TAP
12 Mar - 29 Mar	Iberia
02 Mar - 31 Mar	Royal Air Maroc
11 Mar - 29 Mar	Iberia
10 Mar - 29 Mar	Iberia
31 Mar - 22 Apr	Air Canada
29 Mar - 10 Apr	TAP
29 Mar - 22 Apr	Air Canada
29 Mar - 06 Apr	Air Canada
05 Mar - 08 Apr	Iberia
18 Mar - 07 Apr	Iberia
05 Mar - 09 Apr	Iberia

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

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 March from $946

Return flights