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

Return flights

05 May - 18 May	Air Canada
06 May - 25 May	Air Canada
22 May - 16 Jun	Lufthansa
17 May - 17 Jun	Lufthansa
20 May - 17 Jun	Lufthansa
11 May - 17 Jun	Lufthansa
06 May - 27 Jun	Lufthansa
21 May - 10 Jun	Lufthansa
20 May - 10 Jun	Lufthansa
06 May - 28 Jun	Lufthansa
02 May - 16 May	Air France
07 May - 16 May	KLM
21 May - 18 Jun	Air France
07 May - 29 Jun	KLM
11 May - 30 May	KLM
07 May - 30 May	KLM
09 May - 30 May	KLM
10 May - 30 May	KLM
20 May - 30 May	KLM
14 May - 30 May	KLM

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 707€

Return flights