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

Return flights

20 Aug - 26 Aug	Avianca
29 Aug - 03 Sep	Avianca
17 Aug - 30 Aug	Avianca
12 Aug - 18 Aug	Copa
26 Aug - 30 Aug	Avianca
20 Aug - 30 Aug	Avianca
31 Aug - 08 Sep	Copa
05 Aug - 12 Aug	Copa
11 Aug - 23 Aug	Avianca
05 Aug - 11 Aug	Copa
06 Aug - 11 Aug	Copa
08 Aug - 12 Aug	Avianca

Also check the deals for one-way flights from San Salvador 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 Salvador to Santiago in August from 408€

Return flights