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

Return flights

04 Dec - 14 Dec	Sky Airline
02 Dec - 16 Dec	Sky Airline
08 Dec - 22 Dec	LATAM Airlines Group
16 Dec - 30 Jan	Arajet
08 Dec - 29 Dec	LATAM Airlines Group
02 Dec - 21 Dec	Delta
07 Dec - 18 Dec	Delta
04 Dec - 14 Dec	Delta	direct
11 Dec - 12 Jan	LATAM Airlines Group
04 Dec - 30 Dec	United
15 Dec - 12 Jan	LATAM Airlines Group
12 Dec - 28 Dec	Sky Airline
29 Dec - 11 Jan	Sky Airline
11 Dec - 10 Jan	Arajet
27 Dec - 04 Jan	Sky Airline
19 Dec - 17 Jan	Sky Airline
08 Dec - 30 Dec	Delta	direct
11 Dec - 08 Jan	Sky Airline
15 Dec - 10 Jan	Sky Airline
17 Dec - 12 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 362€

Return flights