AirHint found the following cheapest return flights from Houston (HOU) to Madrid (MAD) in August 2026 (see full year).
Return flights
| 01 Aug - 22 Aug | Iberia | ||
| 03 Aug - 17 Aug | ITA Airways | ||
| 05 Aug - 14 Aug | United | ||
| 01 Aug - 08 Aug | Air Canada |
Also check the deals for one-way flights from Houston to Madrid in August.
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