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

Return flights

29 Dec - 12 Jan	Sky Airline
16 Dec - 17 Dec	Sky Airline
29 Dec - 11 Jan	Sky Airline
27 Dec - 10 Jan	Sky Airline
26 Dec - 28 Dec	Delta
21 Dec - 24 Dec	Avianca
14 Dec - 27 Dec	Sky Airline
27 Dec - 02 Jan	Sky Airline
15 Dec - 31 Dec	Sky Airline
17 Dec - 24 Dec	Arajet
26 Dec - 02 Jan	Sky Airline
23 Dec - 25 Dec	Aerolíneas Argentinas
18 Dec - 22 Dec	Avianca
17 Dec - 22 Dec	Avianca
27 Dec - 04 Jan	Sky Airline
26 Dec - 03 Jan	Sky Airline
15 Dec - 12 Jan	Avianca
17 Dec - 01 Jan	Sky Airline
16 Dec - 23 Dec	Sky Airline
29 Dec - 05 Jan	Sky Airline

Also check the deals for one-way flights from Miami to Santiago in December.

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 December from $593

Return flights