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

Return flights

31 Oct - 13 Nov	Flybondi
28 Oct - 04 Nov	Flybondi
20 Oct - 26 Oct	Aerolineas Argentinas
31 Oct - 10 Nov	Flybondi
31 Oct - 15 Nov	Flybondi
31 Oct - 30 Nov	Flybondi
27 Oct - 12 Nov	Flybondi
23 Oct - 13 Nov	Flybondi
16 Oct - 13 Nov	Flybondi
13 Oct - 27 Oct	JetSmart
26 Oct - 04 Nov	Flybondi
29 Oct - 11 Nov	Flybondi
01 Oct - 22 Oct	Flybondi
13 Oct - 21 Oct	JetSmart
16 Oct - 23 Oct	Aerolineas Argentinas
16 Oct - 30 Oct	Aerolineas Argentinas
16 Oct - 22 Oct	Aerolineas Argentinas
14 Oct - 26 Oct	JetSmart
23 Oct - 26 Oct	Aerolineas Argentinas
13 Oct - 26 Oct	JetSmart

Also check the deals for one-way flights from Buenos Aires to Madrid 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 Buenos Aires to Madrid in October from 673€

Return flights