There are
1,505 mi
from Kansas City, MO to Barstow, CA
That's the driving distance. It would take 1 day 1 hour to go from Kansas City, Missouri to Barstow, California.
The flight distance (direct flight from Kansas City, MO to Barstow, CA) is 1,268.26 mi.
1,505 mi = 1.61 kms