There are
1,541 mi
from Irvine, CA to Kilgore, TX
That's the driving distance. It would take 1 day 2 hours to go from Irvine, California to Kilgore, Texas.
The flight distance (direct flight from Irvine, CA to Kilgore, TX) is 1,327.87 mi.
1,541 mi = 1.61 kms