There are
2,451 mi
from Concord, NC to Simi Valley, CA
That's the driving distance. It would take 1 day 19 hours to go from Concord, North Carolina to Simi Valley, California.
The flight distance (direct flight from Concord, NC to Simi Valley, CA) is 2,154.25 mi.
2,451 mi = 3,944.40 kms