There are
1,547 mi
from Diamond Bar, CA to Pittsburg, KS
That's the driving distance. It would take 1 day 2 hours to go from Diamond Bar, California to Pittsburg, Kansas.
The flight distance (direct flight from Diamond Bar, CA to Pittsburg, KS) is 1,313.54 mi.
1,547 mi = 2,489.25 kms