Shake Shack brings back Shack Sundays promotion

Shake Shack has announced the return of its ‘Shack Sundays’ promotion, offering customers a free menu item every Sunday through December 27, 2026. To qualify for the deal, customers must make a minimum purchase of $10 at participating locations.

Customers can choose from four specific free items: a Chicken Shack West Coast Chicken Sandwich, a ShackBurger, or six Chicken Bites. The offer is valid for orders placed via the Shake Shack app, website, or in-restaurant kiosks, but excludes drive-thru and third-party delivery services. Additionally, the promotion excludes locations in airports, stadiums, arenas, travel plazas, and museums.

Separately, the company is offering a free Chicken Shack Sandwich or Chicken Shack Lettuce Wrap every Sunday through the same end date.