AirHint found the following cheapest return flights from Madrid (MAD) to Buenos Aires (AEP) in October 2025 (see full year).

Return flights

15 Oct - 31 Oct	Air Europa
18 Oct - 31 Oct	Royal Air Maroc
09 Oct - 13 Oct	TAP
25 Oct - 29 Nov	Ryanair
20 Oct - 30 Oct	TAP
31 Oct - 15 Nov	Royal Air Maroc
13 Oct - 20 Oct	Ryanair
07 Oct - 31 Oct	TAP
25 Oct - 01 Nov	Ryanair
07 Oct - 25 Oct	TAP
23 Oct - 31 Oct	TAP
07 Oct - 18 Oct	TAP
22 Oct - 30 Oct	Iberia
27 Oct - 15 Nov	TAP
27 Oct - 14 Nov	TAP
23 Oct - 09 Nov	TAP
15 Oct - 15 Nov	Iberia
15 Oct - 16 Nov	Iberia
30 Oct - 16 Nov	TAP
28 Oct - 16 Nov	Iberia

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 829€

Return flights