There are
2,501 mi
from Kissimmee, FL to Irvine, CA
That's the driving distance. It would take 1 day 19 hours to go from Kissimmee, Florida to Irvine, California.
The flight distance (direct flight from Kissimmee, FL to Irvine, CA) is 2,175.87 mi.
2,501 mi = 4,025.55 kms