Please be aware that Toronto has multiple airports and that these results are only for Lester B. Pearson International airport.
The best month to arrive at Toronto is February and the most expensive month to fly is December. (Average prices, based on 320 datapoints.)
The best day to arrive at Toronto is Tuesday and it would be best to avoid Sunday, as prices are on average 45.2% higher than on Tuesday. (Average prices, based on 355 datapoints.)
The cheapest airline flying to Toronto is Icelandair. They are 84% cheaper than Lufthansa. (Average prices, based on 385 datapoints.)
At Toronto the most flights depart around 11:00. (Hourly flights, based on 453 datapoints.)
From Toronto it is on average the cheapest to fly to Vancouver and to San Francisco. (Average prices, based on 185 datapoints.)