Flight Lester B. Pearson International Airport departs from Toronto Lester B. Pearson International Airport at 20:45 and arrives at San Francisco International Airport at 23:22.
The flighttime is about 5h 37m. The distance travelled ("as the bird flies"): 4748 Km. So the average speed is roughly 845 Km.
There is an 3 hour time difference between Toronto and San Francisco