There are
1,370 mi
from Amarillo, TX to Susanville, CA
That's the driving distance. It would take 1 day to go from Amarillo, Texas to Susanville, California.
The flight distance (direct flight from Amarillo, TX to Susanville, CA) is 1,085.61 mi.
1,370 mi = 2,205.13 kms