AirHint found the following cheapest return flights from Houston (IAH) to Madrid (MAD) in March 2027 (see full year).
Return flights
| 14 Mar - 25 Mar | Air France | ||
| 10 Mar - 24 Mar | United | ||
| 15 Mar - 29 Mar | Air France | ||
| 14 Mar - 26 Mar | Air France | ||
| 14 Mar - 28 Mar | Air France | ||
| 15 Mar - 28 Mar | Air France | ||
| 19 Mar - 26 Mar | KLM |
Also check the deals for one-way flights from Houston to Madrid in March.
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