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

Return flights

30 Aug - 02 Sep	Avianca
30 Aug - 03 Sep	Avianca
29 Aug - 06 Sep	LATAM Airlines Group
08 Aug - 11 Aug	Avianca
22 Aug - 24 Aug	Avianca
07 Aug - 14 Aug	Avianca
11 Aug - 16 Aug	Avianca
11 Aug - 17 Aug	Avianca
06 Aug - 20 Aug	Avianca
05 Aug - 05 Sep	Avianca
03 Aug - 03 Sep	Avianca
21 Aug - 01 Sep	Avianca
23 Aug - 28 Aug	Avianca
18 Aug - 23 Aug	Avianca
24 Aug - 30 Aug	Avianca
30 Aug - 07 Sep	Avianca
15 Aug - 29 Aug	Avianca
01 Aug - 01 Sep	Avianca
15 Aug - 15 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 $379

Return flights