There are
2,856 mi
from Ukiah, CA to Summerville, SC
That's the driving distance. It would take 2 days 2 hours to go from Ukiah, California to Summerville, South Carolina.
The flight distance (direct flight from Ukiah, CA to Summerville, SC) is 2,416.95 mi.
2,856 mi = 4,596.55 kms