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

Return flights

14 Oct - 21 Oct	Air Canada
14 Oct - 22 Oct	American Airlines
07 Oct - 14 Oct	Air Canada
11 Oct - 22 Oct	Iberia
08 Oct - 15 Oct	United
08 Oct - 17 Oct	Air Canada
22 Oct - 30 Oct	Brussels Airlines
01 Oct - 08 Oct	British Airways
14 Oct - 20 Oct	Air Canada
24 Oct - 05 Nov	Air France
30 Oct - 06 Nov	Iberia
23 Oct - 05 Nov	Air France
11 Oct - 16 Oct	Spirit Airlines
09 Oct - 04 Nov	Air France
27 Oct - 03 Nov	Iberia

Also check the deals for one-way flights from Houston 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 Houston to Madrid in October from $516

Return flights