There are
2,027 mi
from St Charles, MO to Orinda, CA
That's the driving distance. It would take 1 day 11 hours to go from St Charles, Missouri to Orinda, California.
The flight distance (direct flight from St Charles, MO to Orinda, CA) is 1,708.92 mi.
2,027 mi = 3,261.44 kms