There are
1,337 mi
from Amarillo, TX to Brentwood, CA
That's the driving distance. It would take 23 hours 47 mins to go from Amarillo, Texas to Brentwood, California.
The flight distance (direct flight from Amarillo, TX to Brentwood, CA) is 1,115.80 mi.
1,337 mi = 1.61 kms