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

Return flights

20 Sep - 27 Sep	Volaris	direct
23 Sep - 25 Sep	Volaris	direct
11 Sep - 13 Sep	Volaris	direct
25 Sep - 02 Oct	Volaris	direct
20 Sep - 21 Sep	Volaris
25 Sep - 28 Sep	Volaris
19 Sep - 21 Sep	Aeromexico
20 Sep - 21 Sep	United	direct
19 Sep - 21 Sep	United	direct
26 Sep - 28 Sep	United	direct
25 Sep - 28 Sep	United	direct
20 Sep - 06 Oct	Viva
20 Sep - 08 Oct	Viva
20 Sep - 09 Oct	Viva
13 Sep - 02 Oct	Viva
20 Sep - 02 Oct	Viva
15 Sep - 02 Oct	Viva
23 Sep - 06 Oct	Viva
25 Sep - 06 Oct	Viva
15 Sep - 06 Oct	Viva

Also check the deals for one-way flights from Houston to San Luis Potosi in September.

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 September from $163

Return flights