There are
1,348 mi
from Amarillo, TX to Menlo Park, CA
That's the driving distance. It would take 23 hours 48 mins to go from Amarillo, Texas to Menlo Park, California.
The flight distance (direct flight from Amarillo, TX to Menlo Park, CA) is 1,140.85 mi.
1,348 mi = 2,168.81 kms