AirHint found the following cheapest one-way flights from Houston (HOU) to Mexico City (MEX) in September 2026 (see full year).
One-Way flights
| 21 Sep | Viva | direct | |
| 11 Sep | Viva | direct | |
| 08 Sep | Viva | direct | |
| 01 Sep | Viva | direct | |
| 13 Sep | Viva | direct |
Also check the deals for return flights from Houston to Mexico City in September.
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