List of Sonic Stores in Saint Charles, MO Outlet Note Regular Brands Sonic Missouri Saint Charles 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 outlet - Saint Charles 2015 S Old Highway 94 (636) 724-8000 Sonic outlet - Saint Charles 3851 Elm St (636) 925-0044 People Also Viewed