AirHint found the following cheapest one-way flights from Houston (HOU) to Madrid (MAD) in November 2025 (see full year).
One-Way flights
| 10 Nov | Frontier Airlines | ||
| 11 Nov | Spirit Airlines | ||
| 12 Nov | Spirit Airlines | ||
| 04 Nov | Spirit Airlines | ||
| 30 Nov | United | ||
| 20 Nov | Frontier Airlines |
Also check the deals for return flights from Houston to Madrid in November.
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