AirHint found the following cheapest return flights from Cancun (CUN) to San Jose (SJO) in August 2026 (see full year).

Return flights

07 Aug - 11 Aug	Viva
07 Aug - 18 Aug	Viva
07 Aug - 22 Aug	Viva
04 Aug - 11 Aug	Aeromexico
22 Aug - 29 Aug	Aeromexico
05 Aug - 11 Aug	Copa
03 Aug - 11 Aug	Viva
08 Aug - 15 Aug	Avianca
03 Aug - 18 Aug	Viva
03 Aug - 22 Aug	Viva
23 Aug - 08 Sep	Viva
23 Aug - 12 Sep	Viva

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 $285

Return flights