AirHint found the following cheapest return flights from Cancun (CUN) to San Jose (SJO) in December 2025 (see full year).

Return flights

24 Dec - 04 Jan	Avianca
01 Dec - 05 Dec	Avianca
01 Dec - 08 Dec	Avianca
06 Dec - 18 Dec	Avianca
11 Dec - 18 Dec	Avianca
22 Dec - 04 Jan	Volaris	direct
16 Dec - 19 Dec	Avianca
09 Dec - 22 Dec	Copa
05 Dec - 13 Dec	Viva
05 Dec - 23 Dec	Viva
08 Dec - 13 Dec	Viva
01 Dec - 06 Dec	Viva
28 Dec - 06 Jan	Viva
22 Dec - 06 Jan	Viva
26 Dec - 06 Jan	Viva
25 Dec - 06 Jan	Viva

Also check the deals for one-way flights from Cancun 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 Cancun to San Jose in December from $263

Return flights