Maybe someone else will have a better answer but most of the stuff in Dallas proper is high end with little to no discount. Galleria, Northpark, etc. The northern suburbs are the same way. There are outlets in Allen, Grand Prairie, Hillsboro (hour south), and Terrell (45 min east). A really cool place to go is the outlets in San Marcos which is about 45 min south of Austin. You can find some amazing deals there but not sure if you'd want to head that far south.