There are
1,830 mi
from Santa Clarita, CA to St Charles, MO
That's the driving distance. It would take 1 day 8 hours to go from Santa Clarita, California to St Charles, Missouri.
The flight distance (direct flight from Santa Clarita, CA to St Charles, MO) is 1,577.98 mi.
1,830 mi = 1.61 kms