There are
1,835 mi
from St Charles, MO to Aliso Viejo, CA
That's the driving distance. It would take 1 day 7 hours to go from St Charles, Missouri to Aliso Viejo, California.
The flight distance (direct flight from St Charles, MO to Aliso Viejo, CA) is 1,553.62 mi.
1,835 mi = 2,952.40 kms