List of Sonic Stores in Lago Vista, TX Outlet Note Regular Brands Sonic Texas Lago Vista 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 - Lago Vista 20700 FM 1431 (512) 267-4843 People Also Viewed