There are
1,837 mi
from Concord, CA to Kilgore, TX
That's the driving distance. It would take 1 day 8 hours to go from Concord, California to Kilgore, Texas.
The flight distance (direct flight from Concord, CA to Kilgore, TX) is 1,575.25 mi.
1,837 mi = 2,955.84 kms