AirHint found the following cheapest return flights from Montreal (YUL) to Lima (LIM) in October 2025 (see full year).

Return flights

27 Oct - 05 Nov	Avianca
27 Oct - 12 Nov	Avianca
27 Oct - 03 Nov	Avianca
07 Oct - 23 Oct	United
23 Oct - 30 Oct	Air Canada
28 Oct - 04 Nov	Air Canada
30 Oct - 06 Nov	Air Canada
21 Oct - 28 Oct	Air Canada
06 Oct - 23 Oct	Delta
22 Oct - 29 Oct	Delta
20 Oct - 27 Oct	Delta
06 Oct - 28 Oct	Delta
04 Oct - 14 Oct	Delta
28 Oct - 15 Nov	Delta
25 Oct - 01 Nov	Delta
29 Oct - 05 Nov	Avianca
07 Oct - 15 Oct	LATAM Airlines Group
12 Oct - 24 Oct	LATAM Airlines Group
24 Oct - 05 Nov	LATAM Airlines Group
24 Oct - 06 Nov	LATAM Airlines Group

Also check the deals for one-way flights from Montreal to Lima in October.

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 Lima in October from 402€

Return flights