Sonic: Half-Price Cheeseburgers All Day Today (3/17/14)
Sonic is celebrating St. Patrick’s Day with half-price cheeseburgers all day today (3/17/14)! No coupon necessary. Stop by any participating Sonic Drive-In and feed the whole family! Find a Sonic near you here. Don’t miss out on these HOT offers! Sign up for the On-Demand Newsletter to get instant email updates when there is a limited-time deal!
