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

Return flights

20 Aug - 29 Aug	Viva
20 Aug - 25 Aug	Viva
23 Aug - 29 Aug	Viva
10 Aug - 29 Aug	Viva
10 Aug - 25 Aug	Viva
02 Aug - 08 Aug	Viva
18 Aug - 23 Aug	Avianca	direct
19 Aug - 22 Aug	Avianca
01 Aug - 07 Aug	Avianca	direct
20 Aug - 24 Aug	Avianca

Also check the deals for one-way flights from Mexico City 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 Mexico City to San Jose in August from 170€

Return flights