There are
1,582 mi
from Thornton, CO to Concord, NC
That's the driving distance. It would take 1 day 4 hours to go from Thornton, Colorado to Concord, North Carolina.
The flight distance (direct flight from Thornton, CO to Concord, NC) is 1,365.09 mi.
1,582 mi = 1.61 kms