List of Sonic Stores in Willow Grove, PA Outlet Note Regular Brands Sonic Pennsylvania Willow Grove 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 - Willow Grove 2405 Easton Rd (267) 282-5878 Sonic outlet - Willow Grove 2405 Easton Rd (267) 282-5878 People Also Viewed