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

Return flights

25 May - 08 Jun	Lufthansa
27 May - 11 Jun	Lufthansa
21 May - 11 Jun	Lufthansa
21 May - 08 Jun	Lufthansa
26 May - 11 Jun	SWISS
18 May - 08 Jun	Lufthansa
20 May - 11 Jun	Lufthansa
20 May - 09 Jun	Lufthansa
20 May - 10 Jun	Lufthansa
12 May - 04 Jun	Lufthansa
17 May - 28 May	Lufthansa
07 May - 28 May	Lufthansa
13 May - 28 May	Lufthansa
10 May - 29 May	Lufthansa
01 May - 28 May	Lufthansa
15 May - 28 May	Lufthansa
16 May - 29 May	Lufthansa
15 May - 29 May	Lufthansa
21 May - 31 May	Lufthansa
20 May - 31 May	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 $776

Return flights