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

Return flights

15 Aug - 17 Aug	Volaris	direct
14 Aug - 17 Aug	Volaris	direct
06 Aug - 13 Aug	Volaris	direct
23 Aug - 26 Aug	Volaris	direct
14 Aug - 22 Aug	Viva
12 Aug - 19 Aug	Aeromexico	direct
15 Aug - 27 Aug	Viva
25 Aug - 26 Aug	Volaris	direct
17 Aug - 24 Aug	Viva
27 Aug - 29 Aug	Volaris	direct
15 Aug - 19 Sep	Volaris	direct
13 Aug - 03 Sep	Viva	direct
30 Aug - 18 Sep	Viva
13 Aug - 01 Sep	Viva
30 Aug - 14 Sep	Viva
22 Aug - 08 Sep	Viva	direct
23 Aug - 08 Sep	Viva	direct
18 Aug - 08 Sep	Viva
20 Aug - 08 Sep	Viva	direct
30 Aug - 14 Sep	Viva	direct

Also check the deals for one-way 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 return flights from Houston to Mexico City in August from $198

Return flights