There are
1,508 mi
from Amarillo, TX to Pasco, WA
That's the driving distance. It would take 1 day 2 hours to go from Amarillo, Texas to Pasco, Washington.
The flight distance (direct flight from Amarillo, TX to Pasco, WA) is 1,177.42 mi.
1,508 mi = 1.61 kms