There are
1,812 mi
from Arcadia, CA to St Charles, MO
That's the driving distance. It would take 1 day 7 hours to go from Arcadia, California to St Charles, Missouri.
The flight distance (direct flight from Arcadia, CA to St Charles, MO) is 1,556.50 mi.
1,812 mi = 2,916.12 kms