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

Return flights

03 Dec - 10 Dec	Volaris	direct
15 Dec - 22 Dec	Avianca
27 Dec - 04 Jan	Avianca
30 Dec - 05 Jan	Copa
22 Dec - 05 Jan	Volaris	direct
05 Dec - 09 Dec	Viva
05 Dec - 16 Dec	Viva
01 Dec - 06 Dec	Viva
01 Dec - 09 Dec	Viva
05 Dec - 23 Dec	Viva
05 Dec - 20 Dec	Viva
01 Dec - 16 Dec	Viva
01 Dec - 20 Dec	Viva
28 Dec - 13 Jan	Viva
28 Dec - 10 Jan	Viva
22 Dec - 10 Jan	Viva
25 Dec - 13 Jan	Viva
28 Dec - 03 Jan	Viva
28 Dec - 06 Jan	Viva
22 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.

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Cheapest return flights from Cancun to San Jose in December from 189€

Return flights