List of Sonic Stores in Flowery Branch, GA Outlet Note Regular Brands Sonic Georgia Flowery Branch 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 - Flowery Branch 7425 Spout Springs Rd (770) 965-9405 Sonic outlet - Flowery Branch 7425 Spout Springs Rd (770) 965-9405 Sonic outlet - Flowery Branch 3415 Atlanta Hwy (678) 450-1600 People Also Viewed