There are
1,803 mi
from St Charles, MO to Tehachapi, CA
That's the driving distance. It would take 1 day 7 hours to go from St Charles, Missouri to Tehachapi, California.
The flight distance (direct flight from St Charles, MO to Tehachapi, CA) is 1,556.71 mi.
1,803 mi = 2,902.01 kms