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

Return flights

30 Dec - 25 Jan	Arajet
29 Dec - 26 Jan	LATAM Airlines Group	direct
16 Dec - 04 Jan	Sky Airline
22 Dec - 07 Jan	Sky Airline
19 Dec - 02 Jan	Sky Airline
16 Dec - 22 Dec	Arajet
22 Dec - 02 Jan	Sky Airline
22 Dec - 02 Jan	LATAM Airlines Group	direct
22 Dec - 07 Jan	LATAM Airlines Group	direct
16 Dec - 04 Jan	American Airlines	direct

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 $553

Return flights