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

Return flights

14 Aug - 22 Aug	Arajet
14 Aug - 21 Aug	Sky Airline
21 Aug - 24 Aug	Sky Airline
13 Aug - 16 Aug	Sky Airline
12 Aug - 20 Aug	Avianca
07 Aug - 11 Aug	Arajet
07 Aug - 12 Aug	Avianca
05 Aug - 12 Aug	Avianca
10 Aug - 21 Aug	Avianca
05 Aug - 15 Aug	Avianca
13 Aug - 02 Sep	Copa

Also check the deals for one-way flights from Miami 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 Miami to Santiago in August from 388€

Return flights