There are
2,300 mi
from Greenville, SC to Walnut, CA
That's the driving distance. It would take 1 day 16 hours to go from Greenville, South Carolina to Walnut, California.
The flight distance (direct flight from Greenville, SC to Walnut, CA) is 2,011.51 mi.
2,300 mi = 3,701.64 kms