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

Return flights

21 Oct - 18 Nov	Avianca
21 Oct - 28 Oct	Avianca
22 Oct - 31 Oct	Avianca
27 Oct - 10 Nov	Azul Airlines
20 Oct - 10 Nov	Avianca
27 Oct - 01 Nov	Azul Airlines
30 Oct - 10 Nov	Ryanair
16 Oct - 29 Oct	LATAM Airlines Group
30 Oct - 13 Nov	Ryanair
16 Oct - 30 Oct	LATAM Airlines Group
27 Oct - 03 Nov	Azul Airlines
29 Oct - 14 Nov	Ryanair
26 Oct - 05 Nov	Azul Airlines
20 Oct - 03 Nov	Avianca
16 Oct - 31 Oct	Avianca
27 Oct - 31 Oct	Avianca
22 Oct - 29 Oct	Ryanair
21 Oct - 31 Oct	Avianca
20 Oct - 24 Oct	Avianca
19 Oct - 26 Oct	Avianca

Also check the deals for one-way flights from Madrid to Asuncion 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 Asuncion in October from 961€

Return flights