There are
1,794 mi
from Pittsburg, CA to Gladstone, MO
That's the driving distance. It would take 1 day 6 hours to go from Pittsburg, California to Gladstone, Missouri.
The flight distance (direct flight from Pittsburg, CA to Gladstone, MO) is 1,472.10 mi.
1,794 mi = 2,887.90 kms