There are
1,883 mi
from Rancho Cucamonga, CA to Picayune, MS
That's the driving distance. It would take 1 day 8 hours to go from Rancho Cucamonga, California to Picayune, Mississippi.
The flight distance (direct flight from Rancho Cucamonga, CA to Picayune, MS) is 1,643.38 mi.
1,883 mi = 1.61 kms