AirHint found the following cheapest one-way flights from Houston (IAH) to San Luis Potosi (SLP) in September 2025 (see full year).

One-Way flights

02 Sep	Volaris	direct
11 Sep	Volaris	direct
04 Sep	Volaris	direct
09 Sep	Volaris	direct
16 Sep	Volaris	direct
26 Sep	Aeromexico
08 Sep	American Airlines
26 Sep	United	direct
03 Sep	Spirit Airlines
15 Sep	Viva

Also check the deals for return 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 one-way flights from Houston to San Luis Potosi in September from $43

One-Way flights