Cheapest return flights from Houston to Madrid in May from 435€

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

Return flights

06 May - 13 May ITA Airways
06 May - 03 Jun ITA Airways
20 May - 27 May Iberia
10 May - 17 May Iberia
05 May - 12 May Iberia
15 May - 22 May Iberia
14 May - 31 May Iberia
21 May - 31 May Air Canada
19 May - 30 May Finnair
20 May - 24 Jun Air Canada
22 May - 31 May ITA Airways
25 May - 01 Jun Iberia
23 May - 04 Jun Iberia
30 May - 12 Jun Air Canada
20 May - 30 May Finnair
28 May - 07 Jun Iberia
30 May - 06 Jun Iberia
31 May - 05 Jun ITA Airways

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

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