There are
1,596 mi
from Simi Valley, CA to Kilgore, TX
That's the driving distance. It would take 1 day 3 hours to go from Simi Valley, California to Kilgore, Texas.
The flight distance (direct flight from Simi Valley, CA to Kilgore, TX) is 1,382.99 mi.
1,596 mi = 1.61 kms