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

Return flights

05 Oct - 12 Oct	Avianca
03 Oct - 07 Oct	Avianca	direct
16 Oct - 20 Oct	Avianca
01 Oct - 07 Oct	Avianca
01 Oct - 08 Oct	Avianca
09 Oct - 12 Oct	Avianca
06 Oct - 10 Oct	Avianca
13 Oct - 20 Oct	Avianca
07 Oct - 14 Oct	Avianca
06 Oct - 11 Oct	Avianca
25 Oct - 06 Nov	Avianca
30 Oct - 03 Nov	Avianca
30 Oct - 04 Nov	Avianca
30 Oct - 08 Nov	Avianca

Also check the deals for one-way flights from Mexico City to San Jose 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 Jose in October from 199€

Return flights