AirHint found the following cheapest one-way flights from Cancun (CUN) to San Jose (SJO) in August 2025 (see full year).

One-Way flights

19 Aug	Volaris	direct
05 Aug	Volaris Costa Rica	direct
23 Aug	Volaris	direct
20 Aug	Volaris	direct
16 Aug	Volaris	direct
03 Aug	Volaris El Salvador
04 Aug	Avianca
01 Aug	Avianca
10 Aug	Avianca
15 Aug	Volaris	direct

Also check the deals for return flights from Cancun to San Jose in August.

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 one-way flights from Cancun to San Jose in August from $81

One-Way flights