AirHint found the following cheapest return flights from Mexico City (MEX) to San Jose (SJO) in December 2026 (see full year).

Return flights

03 Dec - 10 Dec	Avianca	direct
01 Dec - 08 Dec	Avianca	direct
28 Dec - 04 Jan	Avianca
29 Dec - 03 Jan	Avianca
17 Dec - 22 Dec	Avianca
27 Dec - 03 Jan	Avianca
27 Dec - 04 Jan	Avianca
19 Dec - 04 Jan	Avianca
12 Dec - 22 Dec	Aeromexico	direct
23 Dec - 02 Jan	Avianca
03 Dec - 06 Dec	Avianca	direct
26 Dec - 02 Jan	Avianca
17 Dec - 22 Dec	Aeromexico	direct
26 Dec - 02 Jan	Avianca	direct
19 Dec - 04 Jan	Avianca	direct

Also check the deals for one-way flights from Mexico City to San Jose 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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Cheapest return flights from Mexico City to San Jose in December from 223€

Return flights