There are
1,336 mi
from Amarillo, TX to Pleasanton, CA
That's the driving distance. It would take 23 hours 24 mins to go from Amarillo, Texas to Pleasanton, California.
The flight distance (direct flight from Amarillo, TX to Pleasanton, CA) is 1,124.57 mi.
1,336 mi = 2,149.35 kms