There are
1,676 mi
from Tustin, CA to Natchitoches, LA
That's the driving distance. It would take 1 day 4 hours to go from Tustin, California to Natchitoches, Louisiana.
The flight distance (direct flight from Tustin, CA to Natchitoches, LA) is 1,440.65 mi.
1,676 mi = 1.61 kms