Half Priced Small Classic Shakes At Sonic (May 18-31)

Your go-to drive-in just got even better. Sonic is serving up half priced Small Classic Shakes now through May 31. We’re talking creamy Chocolate, Vanilla, and Strawberry shakes at a sweet discount. Plus, app users can score free drinks, $2 snacks, and more killer deals. Whether you’re craving a treat or feeding the whole family, this is one offer you don’t want to sleep on.

How to Get This Deal

Download the SONIC App or open it if you already have it
Create a SONIC Rewards account (free to join)
Navigate to the offers section and add the Half Priced Small Classic Shake offer to your account
Visit any participating Sonic location and order your Small Classic Shake before May 31 to redeem at half price
Stack additional savings by using code DELIVERY for free delivery on orders $10+

More Sonic App Deals This Month

Sonic Rewards members can unlock even more savings throughout May. Here’s what’s dropping:

Free SONIC Smasher or All-American Smasher with a $5 purchase
Free Medium Drink with a $3 purchase
May 25-31: $2 Snacks including Soft Pretzel Twist, Premium Chicken Bites, and Corn Dogs

Regular Sonic app deals include half-price burgers every Tuesday after 5PM, half-price drinks and slushes all day, and $1 snacks from 2-5PM daily.

Want More Ways to Save?

Looking for more great savings? You can find more daily deals just like this one at our deals section or check out all the latest food coupons we’ve found. Don’t forget to become a member to get the best offers sent straight to you.

Offer valid May 18-31, 2026. Prices and participation may vary by location. Additional fees may apply for delivery. While supplies last.