There are
851 mi
from Amarillo, TX to Thibodaux, LA
That's the driving distance. It would take 15 hours 21 mins to go from Amarillo, Texas to Thibodaux, Louisiana.
The flight distance (direct flight from Amarillo, TX to Thibodaux, LA) is 742.24 mi.
851 mi = 1,369.44 kms