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

Return flights

20 May - 27 May	Air Canada
05 May - 18 May	Air Canada
06 May - 20 May	Air Canada
13 May - 25 May	Air Canada
20 May - 25 May	Air Canada
06 May - 18 May	Air Canada
06 May - 27 May	Air Canada
13 May - 28 May	Air Canada
01 May - 14 May	Air Canada
01 May - 11 May	Air Canada
07 May - 28 Jun	Lufthansa
20 May - 17 Jun	Air France
31 May - 17 Jun	Lufthansa
20 May - 03 Jun	Lufthansa
03 May - 11 Jun	Lufthansa
01 May - 11 Jun	Lufthansa
13 May - 22 Jun	Lufthansa
29 May - 05 Jun	Lufthansa
12 May - 13 Jun	Lufthansa
06 May - 27 Jun	Lufthansa

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 $698

Return flights