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

Return flights

15 Aug - 04 Sep	Viva
31 Aug - 04 Sep	Avianca
08 Aug - 15 Aug	Avianca
07 Aug - 12 Aug	Avianca
08 Aug - 11 Aug	Avianca
11 Aug - 14 Aug	Viva
08 Aug - 14 Aug	Viva
11 Aug - 16 Aug	Copa
11 Aug - 17 Aug	Viva
08 Aug - 17 Aug	Viva
11 Aug - 13 Aug	Viva
15 Aug - 17 Aug	Viva

Also check the deals for one-way flights from San Jose to Cancun 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 San Jose to Cancun in August from $246

Return flights