There are
1,818 mi
from Olathe, KS to Larkspur, CA
That's the driving distance. It would take 1 day 7 hours to go from Olathe, Kansas to Larkspur, California.
The flight distance (direct flight from Olathe, KS to Larkspur, CA) is 1,496.26 mi.
1,818 mi = 1.61 kms