There are
1,600 mi
from Thornton, CO to Canandaigua, NY
That's the driving distance. It would take 1 day 5 hours to go from Thornton, Colorado to Canandaigua, New York.
The flight distance (direct flight from Thornton, CO to Canandaigua, NY) is 1,444.03 mi.
1,600 mi = 1.61 kms