There are
2,403 mi
from Roanoke, VA to Rialto, CA
That's the driving distance. It would take 1 day 18 hours to go from Roanoke, Virginia to Rialto, California.
The flight distance (direct flight from Roanoke, VA to Rialto, CA) is 2,098.08 mi.
2,403 mi = 3.22 kms