AirHint found the following cheapest return flights from Monterrey (MTY) to Houston (IAH) in September 2026 (see full year).
Return flights
| 18 Sep - 21 Sep | Viva | direct | |
| 04 Sep - 19 Sep | Viva | direct | |
| 04 Sep - 21 Sep | Viva | direct | |
| 18 Sep - 19 Sep | Viva | direct | |
| 04 Sep - 09 Sep | Viva | direct |
Also check the deals for one-way flights from Monterrey to Houston in September.
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