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

Return flights

10 Aug - 17 Aug	Avianca
13 Aug - 20 Aug	Avianca
21 Aug - 25 Aug	Avianca
07 Aug - 14 Aug	Avianca
08 Aug - 15 Aug	Avianca
11 Aug - 18 Aug	Avianca
14 Aug - 20 Aug	Avianca
06 Aug - 11 Aug	Avianca
06 Aug - 13 Aug	Avianca
08 Aug - 11 Aug	Avianca
29 Aug - 05 Sep	Avianca
30 Aug - 06 Sep	Avianca
31 Aug - 07 Sep	Avianca
26 Aug - 02 Sep	Avianca
24 Aug - 01 Sep	Avianca
25 Aug - 08 Sep	Avianca
31 Aug - 10 Sep	Avianca
06 Aug - 01 Sep	Avianca
06 Aug - 02 Sep	Avianca
27 Aug - 04 Sep	Avianca

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 304€

Return flights