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

Return flights

07 Aug - 11 Aug	Avianca
08 Aug - 12 Aug	Avianca
05 Aug - 12 Aug	Avianca
07 Aug - 16 Aug	Avianca
05 Aug - 11 Aug	Avianca
06 Aug - 11 Aug	Avianca
27 Aug - 01 Sep	Avianca
28 Aug - 02 Sep	Avianca
17 Aug - 24 Aug	Avianca
07 Aug - 20 Aug	Avianca
11 Aug - 15 Aug	Copa
18 Aug - 22 Aug	Copa
27 Aug - 02 Sep	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 $443

Return flights