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

Return flights

27 Oct - 03 Nov	Air Transat
22 Oct - 29 Oct	Avianca
06 Oct - 13 Oct	Avianca
01 Oct - 08 Oct	Avianca
24 Oct - 31 Oct	Avianca
29 Oct - 05 Nov	Avianca
15 Oct - 22 Oct	Avianca
05 Oct - 19 Oct	Avianca
20 Oct - 27 Oct	Avianca
21 Oct - 28 Oct	Porter Airlines (Canada) Ltd
26 Oct - 02 Nov	Air Transat
01 Oct - 19 Oct	Avianca
17 Oct - 24 Oct	Avianca
28 Oct - 04 Nov	Air Transat
30 Oct - 06 Nov	Air Transat
25 Oct - 01 Nov	Air Transat
31 Oct - 07 Nov	Air Transat
20 Oct - 21 Nov	Avianca

Also check the deals for one-way flights from Montreal to Guatemala City 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 Guatemala City in October from $416

Return flights