There are
2,095 mi
from Ukiah, CA to Collinsville, IL
That's the driving distance. It would take 1 day 13 hours to go from Ukiah, California to Collinsville, Illinois.
The flight distance (direct flight from Ukiah, CA to Collinsville, IL) is 1,776.45 mi.
2,095 mi = 3,372.28 kms