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

Return flights

02 Sep - 23 Sep	Porter Airlines (Canada) Ltd
02 Sep - 17 Sep	Porter Airlines (Canada) Ltd
02 Sep - 28 Sep	Porter Airlines (Canada) Ltd
07 Sep - 19 Sep	Porter Airlines (Canada) Ltd
03 Sep - 24 Sep	United
03 Sep - 18 Sep	United
16 Sep - 21 Sep	Porter Airlines (Canada) Ltd
03 Sep - 16 Sep	United
17 Sep - 23 Sep	United

Also check the deals for one-way flights from Ottawa 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 Ottawa to Guatemala City in September from 381€

Return flights