Sonic: $0.50 Corn Dogs All Day Long (2/16) February 16th, 2017 By Nicole Leave a Comment This post may contain affiliate links, which means I will make a small commission if you click and make a purchase.Thank you for supporting Cha-Ching on a Shoestring! Today only (2/16) Sonic is offering Corn Dogs for $0.50 all day long! There are no coupons required to snag this deal. (You may want to check with your Sonic before you head out to make sure they are participating). Enjoy!