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

Return flights

28 Dec - 30 Dec	Arajet
21 Dec - 27 Dec	Arajet
30 Dec - 10 Jan	Sky Airline
20 Dec - 12 Jan	Avianca
21 Dec - 26 Dec	Arajet
19 Dec - 22 Dec	Viva
19 Dec - 21 Dec	Viva
28 Dec - 14 Jan	Viva
28 Dec - 02 Jan	Arajet
29 Dec - 03 Jan	Copa
28 Dec - 12 Jan	Viva
30 Dec - 14 Jan	Viva
29 Dec - 14 Jan	Viva
26 Dec - 14 Jan	Viva
27 Dec - 14 Jan	Viva
26 Dec - 30 Dec	Viva
22 Dec - 30 Dec	Viva
27 Dec - 30 Dec	Viva
22 Dec - 26 Dec	Viva
22 Dec - 27 Dec	Viva

Also check the deals for one-way flights from Cancun 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 Cancun to Santiago in December from $652

Return flights