There are
2,722 mi
from Walnut Creek, CA to Roanoke, VA
That's the driving distance. It would take 1 day 23 hours to go from Walnut Creek, California to Roanoke, Virginia.
The flight distance (direct flight from Walnut Creek, CA to Roanoke, VA) is 2,286.72 mi.
2,722 mi = 4,380.17 kms