There are
1,547 mi
from Irvine, CA to Omaha, NE
That's the driving distance. It would take 1 day 2 hours to go from Irvine, California to Omaha, Nebraska.
The flight distance (direct flight from Irvine, CA to Omaha, NE) is 1,300.03 mi.
1,547 mi = 1.61 kms