Cheapest return flights from Houston to Madrid in May from $549

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

Return flights

03 May - 13 May Air France
17 May - 27 May Delta
10 May - 22 May Air France
06 May - 13 May Iberia
12 May - 02 Jun Spirit Airlines
15 May - 22 May Air Canada
18 May - 03 Jun Air Canada
07 May - 19 May Air France
07 May - 14 May United
04 May - 11 May United
17 May - 25 May KLM
01 May - 10 May Air Canada
25 May - 11 Jun Air Canada
25 May - 05 Jun Air Canada
25 May - 12 Jun Air Canada
24 May - 12 Jun Air Canada
18 May - 26 Jun Air Canada
28 May - 05 Jun Air Canada
30 May - 02 Jun Air Canada
22 May - 05 Jun Iberia

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

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