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

Return flights

03 Dec - 14 Dec	LATAM Airlines Group
03 Dec - 10 Dec	LATAM Airlines Group
04 Dec - 09 Dec	Air Canada
07 Dec - 14 Dec	LATAM Airlines Group
04 Dec - 14 Dec	LATAM Airlines Group
01 Dec - 08 Dec	LATAM Airlines Group
02 Dec - 09 Dec	LATAM Airlines Group
04 Dec - 11 Dec	LATAM Airlines Group
09 Dec - 16 Dec	LATAM Airlines Group
03 Dec - 13 Dec	United
31 Dec - 11 Jan	Copa
27 Dec - 21 Jan	United
27 Dec - 21 Jan	Air Canada	direct
29 Dec - 11 Jan	Delta
30 Dec - 11 Jan	Delta
07 Dec - 07 Jan	Air Canada
16 Dec - 04 Jan	Air Canada
30 Dec - 06 Jan	Air Canada
31 Dec - 07 Jan	LATAM Airlines Group
29 Dec - 05 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.

Book a cheap hotel in Santiago

Cheap car rent in Santiago

Cheapest return flights from Montreal to Santiago in December from 441€

Return flights