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

Return flights

01 Dec - 05 Dec	Copa
06 Dec - 13 Dec	United
01 Dec - 15 Dec	Delta
07 Dec - 17 Dec	Delta
02 Dec - 16 Dec	Delta
07 Dec - 14 Dec	LATAM Airlines Group
01 Dec - 08 Dec	Copa
02 Dec - 09 Dec	LATAM Airlines Group
08 Dec - 15 Dec	LATAM Airlines Group
09 Dec - 16 Dec	LATAM Airlines Group
10 Dec - 27 Jan	Delta
10 Dec - 30 Jan	LATAM Airlines Group
14 Dec - 28 Jan	Delta
31 Dec - 24 Jan	Delta
31 Dec - 19 Jan	LATAM Airlines Group
30 Dec - 20 Jan	Delta
15 Dec - 28 Jan	Porter Airlines (Canada) Ltd
31 Dec - 18 Jan	Delta
12 Dec - 30 Jan	Porter Airlines (Canada) Ltd
16 Dec - 30 Jan	LATAM Airlines Group

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 400€

Return flights