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

Return flights

12 Aug - 19 Aug	Avianca
28 Aug - 08 Sep	Avianca
27 Aug - 02 Sep	Avianca
12 Aug - 23 Aug	Avianca
12 Aug - 22 Aug	Avianca
23 Aug - 31 Aug	Avianca
13 Aug - 20 Aug	Avianca
13 Aug - 21 Aug	Avianca
13 Aug - 23 Aug	Avianca
14 Aug - 19 Aug	Avianca
12 Aug - 12 Aug	Copa
14 Aug - 23 Aug	Avianca

Also check the deals for one-way flights from Santiago to San Juan 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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Cheapest return flights from Santiago to San Juan in August from 340€

Return flights