There are
2,089 mi
from St Charles, MO to Scotts Valley, CA
That's the driving distance. It would take 1 day 12 hours to go from St Charles, Missouri to Scotts Valley, California.
The flight distance (direct flight from St Charles, MO to Scotts Valley, CA) is 1,712.82 mi.
2,089 mi = 3,361.12 kms