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

Return flights

05 Dec - 09 Dec	Viva	direct
05 Dec - 07 Dec	Viva	direct
07 Dec - 09 Dec	Viva	direct
09 Dec - 14 Dec	Viva	direct
09 Dec - 12 Dec	Viva	direct
12 Dec - 14 Dec	Viva	direct
05 Dec - 14 Dec	Viva	direct
05 Dec - 12 Dec	Viva	direct
07 Dec - 14 Dec	Viva	direct
07 Dec - 12 Dec	Viva	direct
14 Dec - 02 Jan	Viva	direct
16 Dec - 02 Jan	Viva	direct
21 Dec - 02 Jan	Viva	direct
19 Dec - 02 Jan	Viva	direct
23 Dec - 02 Jan	Viva	direct
23 Dec - 13 Jan	Viva	direct
30 Dec - 02 Jan	Viva	direct
30 Dec - 17 Jan	Viva	direct
30 Dec - 13 Jan	Viva	direct
15 Dec - 02 Jan	Viva

Also check the deals for one-way flights from Mexico City to Houston in December.

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 Mexico City to Houston in December from 145€

Return flights