There are
2,053 mi
from St Louis, MO to Larkspur, CA
That's the driving distance. It would take 1 day 11 hours to go from St Louis, Missouri to Larkspur, California.
The flight distance (direct flight from St Louis, MO to Larkspur, CA) is 1,745.33 mi.
2,053 mi = 3.22 kms