List of Sonic Stores in Longmont, CO Outlet Note Regular Brands Sonic Colorado Longmont 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 - Longmont 2339 Main St (303) 651-9613 People Also Viewed