About 365 miles
From Plano TX to Amarillo TX (327.6 miles.) is about 6 hrs. 25 min. driving time.
About 1350 miles
About 1300 miles
115 miles
133 miles
215 miles
138 miles
244 miles
168 miles
27.9 miles
About 1550 miles
The driving distance is 350 miles on I-20 E.