AirHint found the following cheapest return flights from Houston (IAH) to Madrid (MAD) in September 2026 (see full year).
Return flights
| 22 Sep - 01 Oct | Finnair | ||
| 21 Sep - 30 Sep | Finnair | ||
| 22 Sep - 29 Sep | Finnair | ||
| 17 Sep - 29 Sep | Finnair | ||
| 30 Sep - 07 Oct | United | ||
| 23 Sep - 04 Oct | Air Canada | ||
| 17 Sep - 28 Sep | Air Canada | ||
| 10 Sep - 19 Sep | Air Canada |
Also check the deals for one-way flights from Houston to Madrid in September.
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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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