There are
2,722 mi
from Roanoke, VA to Walnut Creek, CA
That's the driving distance. It would take 1 day 23 hours to go from Roanoke, Virginia to Walnut Creek, California.
The flight distance (direct flight from Roanoke, VA to Walnut Creek, CA) is 2,286.72 mi.
2,722 mi = 4,381.01 kms