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

Return flights

09 Dec - 15 Dec	United
02 Dec - 16 Dec	Copa
02 Dec - 23 Dec	Copa
09 Dec - 16 Dec	Copa
09 Dec - 18 Dec	LATAM Airlines Group
03 Dec - 24 Dec	LATAM Airlines Group
10 Dec - 16 Dec	LATAM Airlines Group
09 Dec - 25 Dec	LATAM Airlines Group
03 Dec - 15 Dec	LATAM Airlines Group
02 Dec - 04 Dec	LATAM Airlines Group
24 Dec - 19 Jan	United
31 Dec - 07 Jan	Air Canada
30 Dec - 06 Jan	Air Canada
23 Dec - 14 Jan	Air Canada
27 Dec - 15 Jan	Air Canada
24 Dec - 01 Jan	Air Canada
16 Dec - 13 Jan	United
12 Dec - 17 Jan	Copa
25 Dec - 01 Jan	Air Canada
22 Dec - 01 Jan	Air Canada

Also check the deals for one-way flights from Montreal 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 Montreal to Santiago in December from 467€

Return flights