Who doesn't love a free burger? It's one of the most iconic American foods, and today is National Hamburger Day, when leading fast food chains offer unbeatable deals to mark the occasion. Here's a list of chain restaurants where customers can get discounted or free offers in honor of National Hamburger Day.
Burger King
No one does burgers like Burger King, one of the world's biggest fast food chains. The company has recently been making tweaks to its menu, including improving its Whopper sandwich and adding limited-time Star Wars items as a nod to the 2026 feature film. On May 28, Burger King customers can score a free hamburger with a purchase of $3 or more through the Royal Perks rewards program. Members can also snag four months of Spotify Premium for free with any $10 purchase, as long as the deal is activated in the app's offers tab before the order is placed. Burger King recently revamped their Whopper so it now includes 'more premium' ingredients and a box instead of paper wrapping.
Whataburger
As a fan-favorite chain in the southern US, Whataburger is offering its own version of a National Hamburger Day deal on May 28. Members can get a free Whataburger with a purchase of a medium fry and medium drink. In addition, 50 rewards members will score a year of free food with a special promotion, totaling up to $420 per month for winners. Either order food on National Hamburger Day or email sweepstakes@wbhq.com for a chance to win.
Wendy's
It's National Hamburger Day through June 1 at this fast food chain. When customers order through the Wendy's app, they can grab a Jr Bacon Cheeseburger for just one cent with any purchase. Wendy's also earns praise from customers for its special and exclusive menu items, like the original chili and the Frosty with its rotating flavors.
Wayback Burgers
On May 28, the burger chain is offering its classic burgers for $5. Customers can snag the discount by ordering at the restaurant, online, or via the app with the code '$5CLASS.' Only two discounted burgers are allowed per order.
Dairy Queen
Dairy Queen isn't just for ice cream; they've also served burgers and fries since way back. DQ Rewards program members can get $1 off any signature Stackburger from now through May 31.
Jack in the Box
Jack in the Box has over 2000 locations in the US, most of which are in California and Texas. Customers can get a free Jr Jumbo Jack with any purchase of $1 or more only on National Hamburger Day.
Smashburger
National Burger Day is 'coming in hot' at Smashburger, where customers can grab a single burger for $5.28 with the code '528SINGLE.' This is a one-day-only deal, but the discount works both in-stores and online.
Shake Shack
This fast-casual chain has been celebrating National Hamburger Day all month long. Each week, Shake Shack is offering a different single burger for free with a $10 minimum purchase. Last week, that was a bacon cheeseburger. This week, customers can score a free ShackBurger when they order on the company's app, online, or at a kiosk with the code 'FREEBURGER.' The offer lasts until May 31, with Shake Shack adding that customers 'don't have to sacrifice quality for a good deal.' Shake Shack fans can also enter to win free burgers for a year as long as they enter by June 1. The restaurant recently added a BBQ Boneless Baby Back Rib sandwich to its summer menu, topped with American cheese, bacon, pickles, and crispy onions.
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