Sonic: $1 Hot Dogs All Day Long (3/6) March 6th, 2019 By Nicole This post may contain affiliate links, which means I will make a small commission if you click and make a purchase. Today only (3/6) Sonic is offering Hot Dogs for $1 each (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!