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

Return flights

15 Aug - 29 Aug	Avianca
08 Aug - 11 Aug	Avianca
05 Aug - 31 Aug	Avianca
09 Aug - 16 Aug	Avianca
22 Aug - 30 Aug	Avianca
14 Aug - 28 Aug	Avianca
14 Aug - 18 Aug	Avianca
18 Aug - 21 Aug	Copa
23 Aug - 30 Aug	Copa
23 Aug - 31 Aug	Copa
31 Aug - 16 Sep	Copa
29 Aug - 07 Sep	Copa
21 Aug - 01 Sep	Avianca
30 Aug - 06 Sep	Copa
31 Aug - 06 Sep	Copa
31 Aug - 07 Sep	Copa
05 Aug - 05 Sep	Avianca
07 Aug - 07 Sep	Copa
01 Aug - 01 Sep	Avianca
03 Aug - 03 Sep	Avianca

Also check the deals for one-way flights from San Jose to Santiago 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 Santiago in August from 306€

Return flights