There are
1,450 mi
from Amarillo, TX to Clearlake, CA
That's the driving distance. It would take 1 day 1 hour to go from Amarillo, Texas to Clearlake, California.
The flight distance (direct flight from Amarillo, TX to Clearlake, CA) is 1,172.04 mi.
1,450 mi = 2,332.90 kms