There are
1,257 mi
from Amarillo, TX to Greenfield, CA
That's the driving distance. It would take 22 hours 9 mins to go from Amarillo, Texas to Greenfield, California.
The flight distance (direct flight from Amarillo, TX to Greenfield, CA) is 1,089.09 mi.
1,257 mi = 2,022.89 kms