There are
1,567 mi
from Greensboro, NC to Thornton, CO
That's the driving distance. It would take 1 day 4 hours to go from Greensboro, North Carolina to Thornton, Colorado.
The flight distance (direct flight from Greensboro, NC to Thornton, CO) is 1,391.51 mi.
1,567 mi = 1.61 kms