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

Return flights

13 May - 20 May	Copa
06 May - 13 May	Copa
14 May - 21 May	Copa
27 May - 03 Jun	Copa
28 May - 04 Jun	Copa
27 May - 10 Jun	Copa
20 May - 27 May	Delta
19 May - 26 May	LATAM Airlines Group
05 May - 12 May	Copa
18 May - 25 May	Copa
27 May - 19 Jun	Copa
20 May - 29 May	Delta
17 May - 24 May	Avianca
22 May - 29 May	Avianca
20 May - 10 Jun	Copa
26 May - 09 Jun	Copa
26 May - 05 Jun	Copa
26 May - 02 Jun	Copa
20 May - 18 Jun	Copa
25 May - 01 Jun	Copa

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

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 May from $516

Return flights