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

Return flights

12 Aug - 18 Aug	Volaris	direct
13 Aug - 18 Aug	Volaris	direct
20 Aug - 27 Aug	Volaris	direct
13 Aug - 20 Aug	Volaris	direct
13 Aug - 19 Aug	Volaris	direct
21 Aug - 25 Aug	Avianca
08 Aug - 12 Aug	Avianca
13 Aug - 22 Aug	Avianca
27 Aug - 08 Sep	Avianca
27 Aug - 08 Sep	Volaris	direct
13 Aug - 22 Aug	Volaris	direct
11 Aug - 18 Aug	Volaris	direct
30 Aug - 19 Sep	Avianca

Also check the deals for one-way 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 return flights from Cancun to San Jose in August from 180€

Return flights