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

Return flights

30 Aug - 04 Sep	Copa
05 Aug - 09 Aug	Avianca
07 Aug - 11 Aug	Avianca
09 Aug - 17 Aug	Avianca
23 Aug - 28 Aug	Avianca
12 Aug - 15 Aug	Avianca
07 Aug - 12 Aug	Avianca
13 Aug - 20 Aug	Avianca
21 Aug - 30 Aug	Avianca
09 Aug - 12 Aug	Avianca
19 Aug - 27 Aug	Avianca
31 Aug - 09 Sep	Avianca
26 Aug - 02 Sep	Avianca
11 Aug - 19 Sep	Avianca
12 Aug - 20 Sep	Avianca
09 Aug - 11 Sep	Avianca
21 Aug - 02 Sep	Avianca
30 Aug - 06 Sep	Avianca

Also check the deals for one-way flights from Sao Paulo 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 Sao Paulo to San Jose in August from 307€

Return flights