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

Return flights

17 Oct - 19 Oct	Viva	direct
31 Oct - 03 Nov	Viva	direct
19 Oct - 23 Oct	Viva	direct
19 Oct - 22 Oct	Viva	direct
19 Oct - 01 Nov	Viva	direct
19 Oct - 04 Nov	Viva	direct
19 Oct - 05 Nov	Viva	direct
19 Oct - 06 Nov	Viva	direct
19 Oct - 07 Nov	Viva	direct
19 Oct - 08 Nov	Viva	direct
27 Oct - 09 Nov	Viva	direct
27 Oct - 01 Nov	Viva	direct
27 Oct - 04 Nov	Viva	direct
01 Oct - 07 Oct	Viva	direct
01 Oct - 17 Oct	Viva	direct
01 Oct - 12 Oct	Viva	direct
01 Oct - 13 Oct	Viva	direct
01 Oct - 14 Oct	Viva	direct
01 Oct - 15 Oct	Viva	direct
01 Oct - 16 Oct	Viva	direct

Also check the deals for one-way flights from Mexico City to San Antonio in October.

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 October from $219

Return flights