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

Return flights

31 Oct - 16 Nov	Delta
31 Oct - 08 Nov	Delta
31 Oct - 07 Nov	Delta
31 Oct - 22 Nov	Delta
31 Oct - 17 Nov	Delta
31 Oct - 11 Nov	Delta
31 Oct - 12 Nov	Delta
31 Oct - 19 Nov	Delta
31 Oct - 21 Nov	Delta
30 Oct - 12 Nov	American Airlines
02 Oct - 07 Oct	American Airlines
07 Oct - 28 Oct	Delta
06 Oct - 12 Oct	American Airlines
10 Oct - 29 Oct	Avianca
14 Oct - 29 Oct	Delta
14 Oct - 28 Oct	Delta
14 Oct - 21 Oct	Delta
07 Oct - 21 Oct	Delta
14 Oct - 26 Oct	Delta
21 Oct - 31 Oct	WORLD2FLY

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 $899

Return flights