AirHint found the following cheapest return flights from Montreal (YUL) to Santiago (SCL) in August 2026 (see full year).

Return flights

12 Aug - 19 Aug	Copa
19 Aug - 26 Aug	Copa
20 Aug - 27 Aug	Copa
26 Aug - 02 Sep	Copa
31 Aug - 07 Sep	Copa
14 Aug - 21 Aug	Copa
21 Aug - 28 Aug	Copa
05 Aug - 12 Aug	Copa
17 Aug - 24 Aug	Copa
18 Aug - 25 Aug	Copa
24 Aug - 31 Aug	Copa
25 Aug - 01 Sep	Copa
04 Aug - 11 Aug	LATAM Airlines Group
30 Aug - 06 Sep	Copa
29 Aug - 05 Sep	Copa

Also check the deals for one-way flights from Montreal to Santiago in August.

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 August from $569

Return flights