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

Return flights

31 Oct - 14 Nov	Royal Air Maroc
30 Oct - 14 Nov	Royal Air Maroc
20 Oct - 27 Oct	Royal Air Maroc
08 Oct - 29 Oct	Royal Air Maroc
15 Oct - 29 Oct	Royal Air Maroc
10 Oct - 20 Oct	Royal Air Maroc
07 Oct - 14 Oct	Air Canada
06 Oct - 19 Oct	Air Canada
06 Oct - 14 Oct	Air Canada
06 Oct - 22 Oct	Air Canada
28 Oct - 09 Nov	Royal Air Maroc
09 Oct - 19 Oct	Air Canada
09 Oct - 14 Oct	Air Canada
07 Oct - 11 Nov	Iberia
23 Oct - 08 Nov	Iberia
27 Oct - 10 Nov	Iberia
23 Oct - 13 Nov	Iberia
25 Oct - 15 Nov	Iberia
24 Oct - 16 Nov	Air Europa
22 Oct - 01 Nov	Air Europa

Also check the deals for one-way flights from Madrid to Buenos Aires in October.

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 October from $1078

Return flights