National Hamburger Day May 28 deals

National Hamburger Day falls on Thursday, May 28, and restaurant chains are using the date to push app-based discounts, free burger offers and limited-time meal bundles across the United States. New Haven Daily Voice published a roundup on May 22 naming Burger King, Checkers, Dairy Queen, Habit Burger & Grill, Ruby Tuesday, Shake Shack, Smashburger, The Greene Turtle, Wayback Burgers and White Castle among the participants. National Day Calendar says the annual observance closes out National Burger Month, while Daily Voice said it also lands just after Memorial Day weekend. Shake Shack has separately posted 2026 Burger Month terms showing free-burger promotions running through May. ### Which chains have confirmed May 28 burger offers? Burger King said Royal Perks members can get a free hamburger with a purchase of $3 or more at participating U.S. restaurants on May 28, according to the Daily Voice roundup. The same report said Burger King is also offering eligible members up to four months of Spotify Premium with a $10 purchase. (dailyvoice.com) Shake Shack said customers can get a free burger with a $10 minimum purchase during Burger Month, and its official 2026 offer terms say the promotion applies to qualifying orders fulfilled May 1 through May 31 at participating U.S. locations. Daily Voice said the May 28 offer is for a free ShackBurger with a $10 purchase using the code “FREEBURGER.” Shake Shack’s homepage also directs customers to check for weekly free-burger drops in May with the same code and $10 minimum. (dailyvoice.com) Smashburger is offering any single burger for $5.28 on May 28, Daily Voice reported. The outlet said online and app users can apply the code “528SINGLE,” while in-store customers must mention the deal at checkout. ### Are these freebies really free? Daily Voice said several of the headline offers require a purchase, app order or loyalty enrollment rather than a no-strings giveaway. (shakeshack.com) Burger King’s free hamburger requires a $3 purchase, Shake Shack’s free ShackBurger requires a $10 purchase, and Dairy Queen’s promotion is $1 off a Signature Stackburger from May 25 through May 31 for rewards members at participating Grill & Chill locations. (dailyvoice.com) Habit Burger & Grill’s offer also runs beyond a single day. Daily Voice said rewards members can get a buy-one-get-one Charburger from May 28 through June 3, and customers who join after May 28 can redeem with the code “2CHARS.” ### Which deals start before May 28 or last longer? Checkers is offering a buy-one-get-one-free Classic Burger on May 27 and May 28, according to Daily Voice. (dailyvoice.com) White Castle’s deal lasts longer still, with rewards members able to buy a 10-sack of Original Sliders for $8.99 through June 13 at participating locations, the outlet said. Wayback Burgers is lowering the price of its Classic Burgers to $5 in restaurants, online and through the Wayback Rewards program, Daily Voice reported. Ruby Tuesday is offering its Single Patty American Smashed Burger with fries or tater tots and the Endless Garden Bar for $8.99 on May 28, according to the same report. ### What should customers watch before ordering? (dailyvoice.com) Participating locations, loyalty membership and order channel matter in most of the advertised offers. Shake Shack’s official terms exclude some airport, stadium, arena, travel plaza and museum locations, and say the offer must be used through qualifying direct orders rather than all channels. Daily Voice also repeatedly described the chain promotions as available at participating restaurants, and several require an app, online checkout code or rewards account. (dailyvoice.com) Thursday, May 28 is the key date for the one-day promotions, while several chains have offers that begin on May 25 or May 27 and continue into June. Customers looking for the final terms will need to check the restaurant’s app, rewards account or participating-location listing before ordering. (dailyvoice.com) (shakeshack.com)