List of Sonic Stores in Flemington, NJ Outlet Note Regular Brands Sonic New Jersey Flemington 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 - Flemington 314 State Route 31 (908) 788-0010 Sonic outlet - Flemington 314 State Route 31 (908) 788-0010 People Also Viewed