There are
1,867 mi
from St Charles, MO to Ventura, CA
That's the driving distance. It would take 1 day 8 hours to go from St Charles, Missouri to Ventura, California.
The flight distance (direct flight from St Charles, MO to Ventura, CA) is 1,617.59 mi.
1,867 mi = 3,005.35 kms