AirHint found the following cheapest return flights from Houston (HOU) to San Luis Potosi (SLP) in December 2025 (see full year).

Return flights

27 Dec - 29 Dec	Volaris
27 Dec - 29 Dec	United	direct
24 Dec - 04 Jan	Aeromexico
01 Dec - 12 Dec	Viva
03 Dec - 12 Dec	Viva
24 Dec - 04 Jan	United	direct
03 Dec - 23 Dec	Viva
24 Dec - 29 Dec	Viva
24 Dec - 26 Dec	Viva
23 Dec - 29 Dec	Viva
23 Dec - 26 Dec	Viva
18 Dec - 23 Dec	Viva
24 Dec - 05 Jan	Viva
27 Dec - 05 Jan	Viva
27 Dec - 04 Jan	Viva
23 Dec - 05 Jan	Viva
23 Dec - 04 Jan	Viva
18 Dec - 05 Jan	Viva
18 Dec - 04 Jan	Viva
16 Dec - 05 Jan	Viva

Also check the deals for one-way flights from Houston to San Luis Potosi 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 San Luis Potosi in December from $384

Return flights