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

Return flights

23 Dec - 13 Jan	United
18 Dec - 02 Jan	United
23 Dec - 27 Dec	United
21 Dec - 27 Dec	United
10 Dec - 14 Dec	United
30 Dec - 01 Jan	United
09 Dec - 13 Dec	United
18 Dec - 22 Dec	United
14 Dec - 01 Jan	Viva
10 Dec - 13 Dec	Viva
21 Dec - 01 Jan	Viva
16 Dec - 01 Jan	Viva
13 Dec - 01 Jan	Viva
18 Dec - 01 Jan	Viva
14 Dec - 27 Dec	Viva
23 Dec - 01 Jan	Viva
19 Dec - 01 Jan	Viva
09 Dec - 14 Dec	Viva
09 Dec - 27 Dec	Viva
10 Dec - 27 Dec	Viva

Also check the deals for one-way flights from San Luis Potosi to San Antonio 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 San Luis Potosi to San Antonio in December from 290€

Return flights