1/2 Price Cheeseburgers at Sonic WednesdayYou’ll love the current Hot Deals, sorry you missed this deal. This Wednesday, April 15 enjoy a tax break at Sonic with 1/2 price cheeseburgers all day. How do you like to personalize your Sonic Cheeseburger? My favorite is ketchup and mayo but no tomato. Plus, don’t forget about 1/2 price drinks from 2-4 pm daily! Check with your local SONIC Drive-In for participation.