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

Return flights

22 Sep - 29 Sep	Copa
10 Sep - 17 Sep	Avianca
07 Sep - 09 Sep	Avianca
03 Sep - 24 Sep	Avianca
19 Sep - 26 Sep	Avianca
08 Sep - 15 Sep	Avianca
17 Sep - 24 Sep	Avianca
24 Sep - 01 Oct	Avianca
12 Sep - 19 Sep	Avianca
12 Sep - 30 Sep	Air Canada
07 Sep - 14 Sep	Avianca
28 Sep - 05 Oct	Avianca
29 Sep - 06 Oct	Avianca
25 Sep - 02 Oct	Copa
26 Sep - 03 Oct	Porter Airlines (Canada) Ltd
26 Sep - 04 Oct	Avianca
30 Sep - 07 Oct	Porter Airlines (Canada) Ltd
27 Sep - 04 Oct	Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Montreal to Guatemala City 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 Guatemala City in September from $382

Return flights