There are
1,727 mi
from St Joseph, MO to Lathrop, CA
That's the driving distance. It would take 1 day 5 hours to go from St Joseph, Missouri to Lathrop, California.
The flight distance (direct flight from St Joseph, MO to Lathrop, CA) is 1,425.01 mi.
1,727 mi = 1.61 kms