There are
2,503 mi
from Irvine, CA to Lakeland, FL
That's the driving distance. It would take 1 day 20 hours to go from Irvine, California to Lakeland, Florida.
The flight distance (direct flight from Irvine, CA to Lakeland, FL) is 2,150.46 mi.
2,503 mi = 3.22 kms