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

Return flights

07 Dec - 14 Dec	Viva	direct
07 Dec - 09 Dec	Viva	direct
24 Dec - 20 Jan	Delta	direct
07 Dec - 10 Dec	Viva	direct
07 Dec - 13 Dec	Viva	direct
07 Dec - 16 Dec	Viva	direct
07 Dec - 12 Dec	Viva	direct
21 Dec - 31 Dec	Viva	direct
13 Dec - 14 Dec	Viva	direct
21 Dec - 01 Jan	Viva	direct
24 Dec - 31 Dec	Aeromexico	direct
23 Dec - 11 Jan	Viva	direct
23 Dec - 12 Jan	Viva
23 Dec - 12 Jan	Viva	direct
01 Dec - 14 Dec	Viva	direct
23 Dec - 01 Jan	Viva	direct
21 Dec - 07 Jan	Viva	direct
21 Dec - 11 Jan	Viva	direct
28 Dec - 11 Jan	Viva	direct
28 Dec - 12 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