There are
2,034 mi
from St Charles, MO to Alameda, CA
That's the driving distance. It would take 1 day 11 hours to go from St Charles, Missouri to Alameda, California.
The flight distance (direct flight from St Charles, MO to Alameda, CA) is 1,713.85 mi.
2,034 mi = 3,272.95 kms