There are
1,049 mi
from Amarillo, TX to San Dimas, CA
That's the driving distance. It would take 18 hours 17 mins to go from Amarillo, Texas to San Dimas, California.
The flight distance (direct flight from Amarillo, TX to San Dimas, CA) is 910.18 mi.
1,049 mi = 1.61 kms