National Meatball Day Deals at Subway, Firehouse Subs

National Meatball Day hits today, March 9, with chains rolling out tasty deals. Subway upgrades any 6-inch Meatball Sub of the Day to a footlong for free at participating U.S. spots - just $4.99 base price, higher in CA, AK, HI. Firehouse Subs offers BOGO Meatball Subs for rewards members ordering online or via app. Potbelly gives Perks members a free Original sandwich or wrap with a meatball purchase through March 15. Read more about this...