Please be aware that Toronto has multiple airports and that these results are only for Lester B. Pearson International airport.
The best day to arrive at Toronto is Thursday and it would be best to avoid Saturday, as prices are on average 148.45% higher than on Thursday. (Average prices, based on 368 datapoints.)
At Toronto the most flights depart around 13:00. (Hourly flights, based on 383 datapoints.)
From Toronto most of the flights depart to Vancouver, second best connected from Toronto is New York. (Daily flights, based on 126 datapoints.)