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

Return flights

22 Sep - 01 Oct	Avianca
22 Sep - 29 Sep	Avianca
01 Sep - 08 Sep	Avianca
21 Sep - 28 Sep	Avianca
28 Sep - 05 Oct	Avianca
29 Sep - 06 Oct	Avianca
21 Sep - 29 Sep	Avianca
24 Sep - 29 Sep	Avianca
08 Sep - 15 Sep	Avianca
10 Sep - 17 Sep	Avianca
12 Sep - 19 Sep	Avianca
14 Sep - 21 Sep	Avianca
03 Sep - 10 Sep	Avianca
24 Sep - 01 Oct	Avianca
26 Sep - 03 Oct	Avianca
30 Sep - 07 Oct	Porter Airlines (Canada) Ltd
27 Sep - 04 Oct	Porter Airlines (Canada) Ltd
25 Sep - 02 Oct	Avianca

Also check the deals for one-way flights from Montreal to Managua 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.

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Cheapest return flights from Montreal to Managua in September from 351€

Return flights