Here are the current example first class/ground advantage for delivery transit business days given for USPS delivery from Louisiana to some, not all, states:
2 Days: LA
3 Days: AL, AR, FL, GA, IL, IN, KY, MO, MS, OK, SC, TX
4 Days: AZ, CA, CO, CT, DC, IA, MA, MD, ME, MI, MN, NC, NH, NJ, NM, NY, NV, PA, SD, RI, VA
5 Days: AK, HI, ID, NE, OR, WA, PR