There are
1,998 mi
from Antioch, CA to Lake St Louis, MO
That's the driving distance. It would take 1 day 10 hours to go from Antioch, California to Lake St Louis, Missouri.
The flight distance (direct flight from Antioch, CA to Lake St Louis, MO) is 1,672.48 mi.
1,998 mi = 1.61 kms