There are
1,332 mi
from Amarillo, TX to Brentwood, CA
That's the driving distance. It would take 23 hours 26 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.
1,332 mi = 2,143.87 kms