There are
1,913 mi
from Sarasota, FL to Thornton, CO
That's the driving distance. It would take 1 day 10 hours to go from Sarasota, Florida to Thornton, Colorado.
The flight distance (direct flight from Sarasota, FL to Thornton, CO) is 1,547.71 mi.
1,913 mi = 3,078.59 kms