Smoothie King · Jun 5, 2026
free upgrade to 32-oz. w/ Healthy Rewards
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Join the Healthy Rewards program at Smoothie King where you'll earn a sign-up bonus. In addition, you can upgrade any 20-oz. smoothie to a 32-oz. smoothie for free every Friday. It's free to create an account. Shop Now at Smoothie King
Smoothie King coupons for August 2026. Find the best Smoothie King coupons to get all your favorite smoothies for less, whether you need a particular boost or just want to treat yourself.
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