Smashburger In-Store Offer: Any Burger or Sandwich (of equal or lesser value) Buy 1, Get 1 Free (Valid thru December 24)

Smashburger is offering Buy One, Get One Free on Any Burger or Sandwich (of equal or lesser value) for purchase in-store valid at any participating locations only when you mention promo code 4301 to the cashier. Terms & Conditions. Offer valid through December 24, 2024 or while promotion lasts.