There are
2,823 mi
from Walnut Creek, CA to Cary, NC
That's the driving distance. It would take 2 days 1 hour to go from Walnut Creek, California to Cary, North Carolina.
The flight distance (direct flight from Walnut Creek, CA to Cary, NC) is 2,376.11 mi.
2,823 mi = 4,543.31 kms