There are
2,040 mi
from Pittsburg, CA to Kirkwood, MO
That's the driving distance. It would take 1 day 11 hours to go from Pittsburg, California to Kirkwood, Missouri.
The flight distance (direct flight from Pittsburg, CA to Kirkwood, MO) is 1,698.73 mi.
2,040 mi = 3,283.21 kms