List of Sonic Stores in St Robert, MO Outlet Note Regular Brands Sonic Missouri St Robert Rating 4.5 based on 91 votes Official Website https://www.sonicdrivein.com/ Products Snacks Ice Cream Drinks Chicken Hot Dogs Burgers NameAddressPhone Name/Address/Phone Sonic Drive-In outlet - St Robert 1030 Old Route 66 (573) 336-2007 People Also Viewed