Flight Lester B. Pearson International Airport departs from Toronto Lester B. Pearson International Airport at 12:55 and arrives at Calgary International Airport at 15:10.
The flighttime is about 4h 15m. The distance travelled ("as the bird flies"): 3817 Km. So the average speed is roughly 898 Km.
There is an 2 hour time difference between Toronto and Calgary