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

Return flights

18 Sep - 25 Sep	Copa
16 Sep - 23 Sep	Copa
16 Sep - 29 Sep	Copa
11 Sep - 25 Sep	Copa
16 Sep - 10 Oct	Copa
05 Sep - 25 Sep	Copa
18 Sep - 24 Sep	Copa
09 Sep - 17 Sep	Copa
10 Sep - 24 Sep	Copa
11 Sep - 18 Sep	Copa
17 Sep - 24 Sep	Copa
24 Sep - 08 Oct	Copa
16 Sep - 21 Oct	Copa
23 Sep - 06 Oct	Copa
24 Sep - 01 Oct	Copa
29 Sep - 15 Oct	Copa
29 Sep - 06 Oct	Copa
28 Sep - 05 Oct	Copa
12 Sep - 05 Oct	Copa
23 Sep - 24 Oct	Copa

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

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 Lima

Cheap car rent in Lima

Cheapest return flights from Montreal to Lima in September from $449

Return flights