AirHint found the following cheapest one-way flights from Houston (IAH) to Mexico City (MEX) in August 2025 (see full year).

One-Way flights

13 Aug	Viva	direct
22 Aug	Volaris	direct
05 Aug	Volaris	direct
06 Aug	Volaris	direct
01 Aug	Volaris	direct
08 Aug	Volaris	direct
15 Aug	Volaris	direct
04 Aug	Volaris	direct
07 Aug	Volaris	direct
27 Aug	Volaris	direct

Also check the deals for return flights from Houston to Mexico City in August.

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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Cheapest one-way flights from Houston to Mexico City in August from $63

One-Way flights