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

Return flights

02 Dec - 06 Dec	Viva
02 Dec - 09 Dec	Viva
02 Dec - 11 Dec	Viva
02 Dec - 12 Dec	Viva
02 Dec - 13 Dec	Viva
02 Dec - 14 Dec	Viva
02 Dec - 15 Dec	Viva
02 Dec - 03 Dec	Viva
02 Dec - 04 Dec	Viva
02 Dec - 05 Dec	Viva
29 Dec - 15 Jan	Viva
29 Dec - 19 Jan	Viva
30 Dec - 15 Jan	Viva
30 Dec - 19 Jan	Viva
28 Dec - 15 Jan	Viva
26 Dec - 15 Jan	Viva
29 Dec - 14 Jan	Viva
29 Dec - 12 Jan	Viva
29 Dec - 16 Jan	Viva
29 Dec - 17 Jan	Viva

Also check the deals for one-way flights from Houston to Monterrey 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 Houston to Monterrey in December from 207€

Return flights