Sonic 147 Levittown Pkwy, Levittown, PA19055 Sonic Live radio plays overhead while you dine at your car on a variety of fast food items like the restaurant's…More foot-long coney hot dog, a club sandwich or burger. Drive-thru orders are available. Sonic Drive-In is located off Route 13. "Happy Hour" half price drinks and slushes offered daily from 2pm - 4pm. Kids meals and birthday coupons are available in-store or online.