Trending Now - Celebrate National Hamburger Day With Freebies and Deals!
WHO:
Fast Company - Shake Shack, Burger King, Jack in the Box, Del Taco, Whataburger, Hard Rock Cafe, Sonic, Dairy Queen, Buffalo Wild Wings are participating in National Hamburger Day promotions.
WHAT:
Fast Company - Shake Shack is running a contest with two winners receiving a $2,000 gift card, which is billed as a year of free burgers.
Fast Company - Sonic is offering a free Sonic Smasher, All-American Smasher, or medium drink with a $3 purchase for Sonic Rewards loyalty members.
Slickdeals - Smashburger is offering any single burger for $5.28 when using promo code 528SINGLE at checkout on National Hamburger Day.
Fast Company - Shake Shack is offering a free classic ShackBurger with any purchase above $10.
Fast Company - Burger King is giving away a free hamburger with any purchase over $3 for members of its Royal Perks program.
Fast Company - Jack in the Box is offering $1 hamburgers after 2 p.m., with a limit of five hamburgers per order.
Fast Company - Del Taco is providing a free Double Del Cheeseburger with the purchase of another, valid through May 30.
Fast Company - Whataburger is offering free hamburgers to rewards members who order a medium fries and drink.
Fast Company - Hard Rock Cafe is running a buy-one-get-one-free (BOGO) deal on hamburgers.
Fast Company - Sonic Rewards loyalty members can receive a free Sonic Smasher, All-American Smasher, or medium drink with a $3 purchase.
Fast Company - Dairy Queen is offering $1 off any of its signature Stackburgers to DQ Rewards loyalty program members.
Fast Company - Buffalo Wild Wings is providing a free burger on purchases of $15 or more for new customers who join the rewards program.
WHERE:
Fast Company - Offers are available at participating Burger King, Shake Shack, Del Taco, Whataburger, Hard Rock Cafe, Sonic, Dairy Queen, and Buffalo Wild Wings locations nationwide.
WHEN:
Fast Company - The Shake Shack contest runs through May 31.
Fast Company - Del Taco's offer is valid through May 30.
Fast Company - Hard Rock Cafe's BOGO deal is available on May 28.
WHY:
Fast Company - The promotions are in celebration of National Hamburger Day.
HOW:
Fast Company - Customers can redeem Shake Shack's offer via the Shack app, online, or in-store.
Fast Company - Burger King's offer is available to members of its Royal Perks program.
(UPDATED May 28, 2026 14:16 UTC)
Shake Shack is hosting a contest where two lucky winners will receive a $2,000 gift card, which they can use for a year of free burgers. Meanwhile, Sonic is enticing its Rewards loyalty members with a deal that includes a free Sonic Smasher, All-American Smasher, or medium drink with any $3 purchase. Additionally, Smashburger is celebrating National Hamburger Day by offering any single burger for just $5.28 when customers use the promo code 528SINGLE at checkout.
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(UPDATED May 28, 2026 12:07 UTC)
In celebration of National Hamburger Day, several popular chains including Shake Shack, Burger King, and Del Taco are rolling out enticing promotions for burger lovers. Shake Shack is offering a free classic ShackBurger with any purchase over $10, while Burger King provides a free hamburger with any purchase over $3 for members of its Royal Perks program. Del Taco is giving away a free Double Del Cheeseburger with the purchase of another, valid through May 30, and Hard Rock Cafe is running a buy-one-get-one-free deal on hamburgers today.