Sunday, May 17 is one of the best days of the month to order Shake Shack — and it’s purely a matter of timing.
Two separate promotions overlap today only: the last day of the free SmokeShack offer for National Burger Month, and Shake Shack’s weekly Sunday Chicken Shack deal. That means two free items are available today with two qualifying purchases — and both are gone by tomorrow.
Here’s exactly how to take advantage of both.
Deal #1: Free SmokeShack — Today Only (Code: FREEBURGER)
Shake Shack has been giving away a free burger every week in May for National Burger Month, and this week’s featured burger is the SmokeShack — one of the chain’s most popular items. Tonight at midnight, the offer rotates to a free Bacon Cheeseburger for next week. Today is your last chance at the SmokeShack.
What’s in the SmokeShack: 100% Angus beef patty with applewood-smoked bacon, chopped cherry peppers, and ShackSauce on a toasted potato bun. It’s the spicy-smoky option in the Shake Shack lineup — the cherry peppers add a mild heat that cuts through the richness of the bacon and sauce in a way that makes it distinctly different from the classic ShackBurger.
How to get it:
- Order $10 or more through the Shack App, shakeshack.com, or an in-store kiosk
- Enter code FREEBURGER (all caps) at checkout
- One free SmokeShack per order
- Not valid for drive-thru orders or third-party delivery apps
- Excludes airports, stadiums, arenas, travel plazas, and museums
Deal #2: Free Chicken Shack Every Sunday (Code: CHICKENSUNDAY)
Every Sunday in May, Shake Shack also gives away a free Chicken Shack with any $10+ order using the code CHICKENSUNDAY. It’s a separate promotion that runs independently of the burger deal — meaning you can use both codes on separate orders today.
What’s in the Chicken Shack: Crispy fried chicken breast with lettuce, pickles, and buttermilk herb mayo on a toasted potato bun. It’s Shake Shack’s flagship chicken sandwich and consistently one of the most-ordered items on the menu.
How to get it:
- Order $10 or more through the Shack App, shakeshack.com, or an in-store kiosk
- Enter code CHICKENSUNDAY at checkout
- One free Chicken Shack per order
- Same exclusions as the burger deal above
Also Worth Knowing: Free Burgers for a Year
Shake Shack is also running a National Burger Month Sweepstakes where a few winners will receive free burgers for an entire year. Entry is free and open through June 1. Visit shakeshack.com to enter — no purchase required.
What Happens Tomorrow
Starting Monday, May 18, the free burger offer rotates to a free Bacon Cheeseburger (American cheese and applewood-smoked bacon) through May 24, using the same code FREEBURGER with any $10+ order. The Chicken Shack Sunday deal returns next weekend.
The Bottom Line
Today, Sunday May 17, is the last day to get a free SmokeShack at Shake Shack using code FREEBURGER with any $10+ order. It’s also a free Chicken Shack Sunday using code CHICKENSUNDAY — making it one of the better deal days of the month. Both offers expire at end of day.
