Buy One, Get One Free ShackBurger at Shake Shack

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close up photo of hamburger on bun with tomato and lettuce

There are so many ways to save at some of your favorite restaurants!

We’re sharing all the best Shake Shack coupons and promotions for you! Use them to score lunch or dinner on the cheap, but be sure to read on for a little something fun for your furry friend too!

Through January 2nd, Shake Shack is offering Buy One, Get One Free ShackBurgers when you use the promo code THANKYOU21 at checkout in the app or when ordering online. Note that you will need to be logged in to your account (free to sign up) in order to redeem this promo code.

woman holding ray of hamburgers

Hungry? Here’s how to score this tasty deal…

  • Head here and enter your zip code
  • Select the Shake Shack location near you
  • Buy 2 ShackBurgers from $6.19 each (pricing may vary by location)
  • Total = as low as $12.38
  • Use coupon code THANKYOU21 (buy one, get one free)
  • Final cost as low as $6.19 total – just $3.10 each!

woman holding two holiday milkshakes

Craving something sweet?

Be sure to check out their hand-spun holiday shakes that contain soft, premium ice cream and are made in-house daily with real cane sugar and cage-free eggs.

These seasonal shakes sound delish but are only available for a limited time, so be sure to try them while you still can…

  • Christmas Cookie: Sugar cookie frozen custard topped with whipped cream and holiday sprinkles
  • Chocolate Milk & Cookies: Chocolate cookies hand-spun with malted chocolate frozen custard, topped with whipped cream and chocolate cookie crumble

dog ice cream and biscuits on table by paper sack

There’s a special treat for the “Ultimutt” dog lover too! 🐶

Did you know Shake Shack has a special treat just for your pup? The Bag O’ Bones includes five ShackBurger dog biscuits made by NYC’s Bocce’s Bakery and is available at most Shake Shack locations, except stadiums, ballparks, airports, and international outposts.

Celebrating a birthday soon? Don’t miss out on these freebies!


Jessica has an Associates Degree in Business from University of Phoenix and 9 years of writing experience from various deal sites including Hip2Save. Connect with Jessica on LinkedIn


Join The Discussion

Comments 6

  1. WestbergFive

    Oooh, thank you! Shake Shack recently opened in our area and we have been wanting to give it a try.

    • Jennifer (Hip Sidekick)

      Wahoo! I hope you enjoy it! 😍

    • Dkp91576

      Omg make sure you get the crinkle fries. My absolute fave fast food fry. So good.

  2. Lisa

    We really enjoyed the holiday shakes… just as described-only better.

  3. Chris

    I love their lemonade.too and chicken as well.

  4. gentledogwalker

    Thank you for posting this. This will be another meal I won’t have to cook and mess up my kitchen and I love a bargain.

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