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Score FREE Shake Shack Chicken Sandwich on Sundays

By Denise | Staff Writer

Jul 29, 2026 @ 7:51 AM MDT

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Feeling hungry? Grab Shake Shack on the cheap with the latest promo code! 🍔

Handholding shake shack, chicken sandwich inside restaurant

Through December 27th, participating Shake Shack locations are offering a FREE Chicken Shack or Chicken Shack Lettuce Wrap on Sundays when you spend $10 or more and use promo code CHICKENSUNDAY at checkout via the app, online, or at a kiosk in-Shack!

Even better, for a limited time, score $2 Sodas, $4 Fries, and $6 Shakes with qualifying orders through the app, online, and at participating locations. Note that this offer applies only to classic crinkle cuts and excludes all limited-time-offer shakes.

Handholding shake shack, custard while standing outside restaurant

Plus, through August 19th, they are celebrating National Ice Cream Day with a $3 Single Frozen Custard with any purchase when you use promo code CUSTARDTIME at checkout via the app, online, or at a kiosk in-Shack!

Snag some custard w/ this deal idea…

Buy Single Frozen Custard $4.99
Buy Fries $4
Total = $8.99
Use promo code CUSTARDTIME
Final cost $7 total!

HIP TIP: Currently living the keto lifestyle? Our Keto Shake Shack Burger recipe needs to be on your dinner rotation!

Looking for more cheap eats? Head this way!

About the writer:

Denise has been blogging since 2018 and following Hip2Save since 2008. With a Bachelors degree in Business from Purdue University and 15 years of banking experience, she always has savings on her mind. When she's not browsing the clearance racks of Target, you can find her watching documentaries or cheering on her son at his soccer games with her family.