AirHint found the following cheapest return flights from Mexico City (MEX) to San Antonio (SAT) in December 2025 (see full year).

Return flights

12 Dec - 14 Dec	Volaris	direct
07 Dec - 09 Dec	Viva	direct
06 Dec - 07 Dec	Viva	direct
06 Dec - 09 Dec	Viva	direct
08 Dec - 09 Dec	Viva	direct
08 Dec - 10 Dec	Viva	direct
07 Dec - 13 Dec	Viva	direct
07 Dec - 10 Dec	Viva	direct
06 Dec - 13 Dec	Viva	direct
06 Dec - 10 Dec	Viva	direct
15 Dec - 06 Jan	Delta	direct
15 Dec - 01 Jan	Viva	direct
24 Dec - 12 Jan	Viva	direct
24 Dec - 13 Jan	Viva	direct
12 Dec - 01 Jan	Viva	direct
24 Dec - 08 Jan	Viva	direct
24 Dec - 09 Jan	Viva	direct
24 Dec - 10 Jan	Viva	direct
24 Dec - 11 Jan	Viva	direct
15 Dec - 04 Jan	Viva

Also check the deals for one-way flights from Mexico City 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 Mexico City to San Antonio in December from 164€

Return flights