There are
1,816 mi
from Irvine, CA to Kirkwood, MO
That's the driving distance. It would take 1 day 7 hours to go from Irvine, California to Kirkwood, Missouri.
The flight distance (direct flight from Irvine, CA to Kirkwood, MO) is 1,559.18 mi.
1,816 mi = 1.61 kms