Posted On: August 4th 2026, 09:14 pm
🐔 FREE Chicken Shack Sandwich Every Sunday! 🍔
Here’s how to get it:
✅ Use code CHICKENSUNDAY
✅ Spend $10+ (before taxes & fees)
✅ Add the Chicken Shack Sandwich to your cart
✅ Order through the Shake Shack app or website for pickup
❌ Not valid at the drive-thru or on third-party delivery apps
📍 Valid at participating U.S. Shake Shack locations
⚠️ One free sandwich per order. Cannot be combined with other promo codes.
Save this for your next Sunday lunch and share it with a fellow Shake Shack fan!
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