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

Return flights

26 Aug - 09 Sep	Avianca
28 Aug - 10 Sep	Avianca
28 Aug - 25 Sep	Avianca
30 Aug - 19 Sep	Avianca
26 Aug - 22 Sep	Avianca
26 Aug - 13 Sep	Avianca
23 Aug - 16 Sep	Avianca
23 Aug - 17 Sep	Avianca
26 Aug - 20 Sep	Avianca
19 Aug - 10 Sep	Avianca
30 Aug - 31 Aug	Air Canada
14 Aug - 21 Aug	LATAM Airlines Group
29 Aug - 30 Aug	Air Canada
20 Aug - 28 Aug	LATAM Airlines Group
19 Aug - 26 Aug	Avianca
18 Aug - 25 Aug	LATAM Airlines Group
21 Aug - 28 Aug	Avianca
23 Aug - 31 Aug	Avianca
23 Aug - 30 Aug	Avianca
24 Aug - 31 Aug	Avianca

Also check the deals for one-way flights from Montreal to Lima 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 Lima in August from $457

Return flights