Smashburger celebrates summer with 50% off shakes every week

Chill out and shake up the start of your summer weekends, thanks to this sweet deal from Smashburger.

For many, it doesn’t get much better than enjoying the perfect trio for lunch or dinner — a burger, fries and a shake. And Smashburger is offering discounted shakes on Fridays to enjoy alongside its juicy burgers and hot fries.

From May 2 to July 25, 2025, Smashburger is offering 50% off any shake at participating locations.

The “shaky” offer is only available every Friday from 2 p.m. to 5 p.m. 

Sweetest of all, there is no limit, so you can pick up enough discounted shakes for everyone at home, work or school.

The sweet savings are available in-restaurant — just be sure to mention the offer when ordering. It’s also available online for orders placed via the restaurant’s site or app — use promo code SHAKES25 at checkout. (The offer is not valid for any third-party delivery services.)

The shakes regularly sell from $6.89 to $7.39, so it’s definitely a sweet deal. Regular price may vary by location. 

Choose from the following shakes:

Banana Chocolatey Chip Shake

Banana Shake

OREO Cookies & Cream Chocolatey Chip Shake

OREO Cookies & Cream Shake

Chocolate Shake

Chocolate Chocolatey Chip Shake

Vanilla Shake

Vanilla Chocolatey Chip Shake

Strawberry Chocolatey Chip Shake

Strawberry Shake

Peanut Butter Cookie Chocolatey Chip Shake

Peanut Butter Cookie Shake

Salted Caramel Chocolatey Chip Shake

Salted Caramel Shake

More Restaurant Deals

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• Smashburger celebrates summer with 50% off shakes every week
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• Chicago Mayfest in Lincoln Park

This deal is from Living on the Cheap, our sister site.