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

Return flights

07 May - 17 May	Aerolineas Argentinas
03 May - 28 May	Aerolineas Argentinas
04 May - 24 May	LATAM Airlines Group
04 May - 30 May	LATAM Airlines Group
04 May - 11 May	LATAM Airlines Group
04 May - 15 May	LATAM Airlines Group
11 May - 17 May	Air Canada
04 May - 17 May	Air Canada
17 May - 06 Jun	Aerolineas Argentinas
11 May - 24 May	Air Canada
01 May - 08 May	Avianca
11 May - 01 Jun	Avianca
18 May - 03 Jun	Avianca
04 May - 01 Jun	Avianca
10 May - 02 Jun	Avianca
20 May - 02 Jun	Avianca
04 May - 02 Jun	Avianca
29 May - 13 Jun	Avianca
27 May - 08 Jun	Avianca
31 May - 21 Jun	Avianca

Also check the deals for one-way flights from Buenos Aires to Madrid 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 Buenos Aires to Madrid in May from $904

Return flights