Sonic Drive-In is shaking up summer again! There once was a time when the popular fast-food restaurant offered discounted shakes every night, all summer long.
Unfortunately, they haven’t offered the sweet deal since 2019. However, this year, fans of the restaurant’s hand-spun shakes can enjoy sweet savings for a limited time.
Image: Sonic Drive-In
From May 19 to June 29, 2025, Sonic Drive-In is offering 50% off Classic and Master Shakes at participating locations — after 5 p.m. Any add-ons are extra.
No promo code or digital coupon needed. The deal automatically applies at checkout — in-restaurant and online.
Sweetest of all, there is no limit, so everyone in your group can enjoy the cool savings.
Flavors may vary by location.
Choose from the following Classic Shakes:
Banana
Caramel
Chocolate
Hot Fudge
Peanut Butter
Strawberry
Vanilla
Choose from the following Master Shakes:
Cheesecake
OREO Cheesecake
OREO Chocolate
OREO Peanut Butter
Strawberry Cheesecake
Get the inside scoop on all of Sonic’s best deals in our roundup.
More Restaurant Deals
- Enjoy buy-one-get-one free Box Combo at Raising Cane’s for Father’s Day
- Get half-price shakes every night at Sonic Drive-In for limited time
- Popeyes gives away free biscuits for National Buttermilk Biscuit Day
- Krispy Kreme celebrates new PAC-MAN Collection with free doughnuts and 25-cent dozens
- Shake Shack celebrates National Burger Month with free burgers every week in May
- Glenwood Sunday Farmers Market
- Enjoy any Footlong sub for just $6.99 at Subway all month long in May
- Sip free smoothie at Tropical Smoothie Cafe on National Flip Flop Day
- Smashburger celebrates summer with 50% off shakes every week
- Enjoy new 3-Course Shrimp Sensation meal deal for $19.99 at Red Lobster
This deal is from Living on the Cheap, our sister site.
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