Sonic Drive-In is shaking up summer nights 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 discount automatically applies at checkout — in-restaurant and online.
Sweetest of all, there is no limit, so everyone at home 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
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