Originally Posted by
airoli
arriving at security 1h-45min prior to departure is enough
I assume here you mean between 45 min and 1 hr (60 min), not 1 hr + 45 min (105 min).
Much more than 45 min seems unnecessary if the airport is small and one has only carryon bags.
The bigger question is allowing enough time for the connection at YYZ as this will require re-clearing security and clearing customs. Re-checking checked luggage is not required, although that is moot here.