AirHint found the following cheapest one-way flights from Houston (IAH) to Mexico City (MEX) in December 2026 (see full year).
One-Way flights
| 30 Dec | Viva | direct | |
| 31 Dec | Viva | direct | |
| 13 Dec | Viva | direct | |
| 10 Dec | Viva | direct | |
| 25 Dec | Viva | direct | |
| 24 Dec | Viva | direct |
Also check the deals for return flights from Houston to Mexico City in December.
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