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

Return flights

03 May - 18 May	Air Canada
06 May - 11 May	Air Canada
13 May - 25 May	Air Canada
20 May - 25 May	Air Canada
19 May - 25 May	Air Canada
04 May - 12 May	Iberia
02 May - 16 May	Iberia
16 May - 30 May	Iberia
14 May - 28 May	Iberia
18 May - 22 May	Iberia
05 May - 02 Jun	Iberia
01 May - 01 Jun	Iberia
25 May - 12 Jun	Iberia
20 May - 30 Jun	Iberia
05 May - 02 Jun	Iberia	direct
20 May - 30 Jun	Air Europa	direct

Also check the deals for one-way flights from Madrid 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 Madrid to Buenos Aires in May from 649€

Return flights