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

Return flights

28 Oct - 18 Nov	Air Europa
21 Oct - 11 Nov	WORLD2FLY
08 Oct - 11 Nov	Ryanair
07 Oct - 11 Nov	Ryanair
01 Oct - 18 Nov	Ryanair
09 Oct - 22 Oct	Avianca
30 Oct - 17 Nov	TAP
21 Oct - 29 Oct	ITA Airways
09 Oct - 25 Oct	Ryanair
09 Oct - 27 Oct	Ryanair
15 Oct - 18 Nov	Ryanair
06 Oct - 02 Nov	Iberia
06 Oct - 11 Nov	Ryanair
31 Oct - 10 Nov	Ryanair
08 Oct - 29 Oct	Ryanair
07 Oct - 25 Oct	Ryanair
14 Oct - 22 Oct	Ryanair
08 Oct - 22 Oct	Ryanair
01 Oct - 25 Oct	Ryanair
01 Oct - 22 Oct	Ryanair

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 872€

Return flights