There are
1,615 mi
from Irvine, CA to Kansas City, MO
That's the driving distance. It would take 1 day 3 hours to go from Irvine, California to Kansas City, Missouri.
The flight distance (direct flight from Irvine, CA to Kansas City, MO) is 1,340.16 mi.
1,615 mi = 1.61 kms