It is 600.08 miles when driving via Fort Worth and Wichita Falls which is the fastest route according to MapQuest.
The driving distance from Phoenix, Arizona to Amarillo, Texas is 705 miles.
353 miles
490 miles
About 430 miles
325 miles
About 660 miles
749 miles
427 miles
About 365 miles
410 miles
327 miles
The driving distance is about 415 miles.