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

Return flights

14 Oct - 21 Oct	United
07 Oct - 14 Oct	United
05 Oct - 21 Oct	Air Canada
23 Oct - 30 Oct	United
06 Oct - 20 Oct	United
01 Oct - 06 Oct	United
17 Oct - 24 Oct	Iberia
09 Oct - 16 Oct	United
03 Oct - 10 Oct	Iberia
05 Oct - 12 Oct	Iberia
29 Oct - 05 Nov	Iberia
26 Oct - 02 Nov	Iberia

Also check the deals for one-way flights from Austin 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 Austin to Madrid in October from 489€

Return flights