List of Sonic Stores in Lake Saint Louis, MO Outlet Note Regular Brands Sonic Missouri Lake Saint Louis 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 - Lake Saint Louis 6325 Ronald Reagan Dr (636) 561-4312 People Also Viewed