About 26 percent of all departures and arrivals at Pearson International Airport, which serves the Toronto area, were canceled, with affected flights "mostly those scheduled for or from areas affected by the current weather system," an airport spokeswoman said in an email.
More disruptions in Ontario were expected with Environment Canada forecasting a further 5 centimeters (2 inches) to 10 centimeters (4 inches) of snow during the day.
A special weather statement had ended shortly after 9 a.m. Tuesday morning, by which time areas around Toronto had already received 20 to 30 centimeters of snow early on Tuesday, the weather department said on its website.
Sheridan College, Brock University, Mohawk College and McMaster University all in Ontario province were closed, according to a local media report.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)