Cheapest return flights from Houston to Madrid in May from $539

AirHint found the following cheapest return flights from Houston (IAH) to Madrid (MAD) in May 2026 (see full year).

Return flights

12 May - 19 May Finnair
06 May - 13 May British Airways
19 May - 13 Jun British Airways
11 May - 18 May Iberia
14 May - 06 Jun British Airways
15 May - 06 Jun British Airways
22 May - 01 Jun British Airways
22 May - 13 Jun British Airways
28 May - 20 Jun British Airways

Also check the deals for one-way flights from Houston to Madrid in May.

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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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