Leaving around 20 of August from Port St Lucie Fl to Phoenix AZ using I 10 most of the way so the gps says, I never travelled that route any interesting sights along the way I am in no rush. Thanks
We always take US 287 from Wichita Falls to Amarillo. It is a good route. We prefer to entirely miss the DFW (Dallas Forth Worth) area so we go up to US 82 at Paris, Texas and follow 82 to its intersection with US 287. Another possibility for you from I-20 would be to take US 69 just northwest of Tyler all the way to US 82 near Sherman, Texas.
We usually take these routes a couple of times or more each year from East Texas to Colorado.