Chains Extend National Cheeseburger Day Deals with Whopper Jr., Free Sliders and More

Lead Major burger chains are keeping the celebration alive today, September 19, with standout offers such as a free Whopper Jr. at Burger King, BOGO Cheese Sliders at White Castle, and complimentary cheeseburger stacks at Dairy Queen.

Nut Graf Although the official holiday fell on September 18, restaurants nationwide are stretching their promotions into September 19 to boost foot traffic and reward loyalty members. From fast-food to sit-down concepts, these deals offer consumers a final chance to savor discounted cheeseburgers across multiple brands.

Continued Deals Today

Burger King - Free Whopper Jr. Members of the Royal Perks loyalty program can claim one free Whopper Jr. with any purchase of $1 or more when ordering via the BK app or at participating locations.

White Castle - Buy One, Get One Free Cheese Slider Use code “SAYCHEESE” in the White Castle app or online checkout to receive a complimentary Cheese Slider with the purchase of one. This offer runs through September 21.

Dairy Queen - Complimentary Double Original Cheeseburger Stackburger DQ Rewards members can redeem a free Double Original Cheeseburger Stackburger with any order of $1 or more via the Dairy Queen app or website through today.

Portillo’s - 50% Off Regular Cheeseburgers Portillo’s Perks members enjoy half-price regular cheeseburgers in-restaurant or online. New Perks sign-ups also unlock this offer through September 21.

Freddy’s Frozen Custard & Steakburgers - Free Freddy Original Doubleburger Freddy’s app members who spend $10 or more receive a free Freddy Original Doubleburger; valid now through September 21.

Smashburger - $4.99 Single Smashburger** At participating locations, single Smashburgers (excluding the Smoked Brisket Bacon Smash) remain $4.99 for dine-in, pickup, or delivery orders placed via the Smashburger website or app.

Ruby Tuesday - Signature Smashed Burgers from $8.99 Guests can enjoy Ruby Tuesday’s smashed-style cheeseburgers, served with fries or tots and Garden Bar access, for $8.99 today only.

Whataburger - Free Fries or Onion Rings Order a Bacon & Cheese Whataburger via the Whataburger app or website and receive a free order of fries or onion rings.

Shake Shack via DoorDash - $9 Off $25+ Orders DoorDash customers save $9 on Shake Shack orders of $25 or more by applying the promotion directly at checkout.

STK Steakhouse - $9.99 7-Ounce Cheeseburger The upscale steakhouse is offering a nationwide dine-in and delivery special: a 7-ounce cheeseburger served on a brioche bun for $9.99.

Carl’s Jr. - Half-Price Western Bacon Cheeseburger Carl’s Jr. app users who purchase any large fountain drink can add a Western Bacon Cheeseburger at 50% off today.

The Greene Turtle - BOGO Cheeseburger Dine-in guests at participating Greene Turtle locations receive one free cheeseburger for every cheeseburger purchased.

BJ’s Restaurants & Brewhouse - All American Smash Burger Meal Deal For $13, guests get the All American Smash Burger plus a personal-size Pizookie dessert.

Kona Grill - Cheeseburger and Chips for $7.99 Takeout or delivery orders through the Kona Grill app include a Classic Cheeseburger with chips for $7.99; dine-in price is $10.99 with fries.

Native Grill & Wings - $10 Bacon Cheeseburger Mention the offer in-store or use code “Cheese2025” online for a Bacon Cheeseburger at participating Native Grill & Wings locations.

Whether craving a quick app-order steal or a sit-down steakhouse special, today’s extended promotions ensure cheeseburger enthusiasts can celebrate National Cheeseburger Day one last time.