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Used 7 times today
Sonic Drive-In Coupons & Promo Codes
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- In-Store Coupons0
- Sales3
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In-Store
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Free Medium Slush w/ Sonic App
Download the free Sonic app and receive a free medium slush for a limited time.
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Used 2 times today
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Past Sonic Drive-In Coupon Codes
These Sonic Drive-In promo codes have expired but may still work.
50%Off
sale
Today Only: 50% Off All Shakes & Slushes
Today only Sonic is offering 1/2 off all shakes and ice cream slushes.
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Expired 05/25/17
Used 130 times today
1/2 Price Cheeseburgers | Today Only!
Valid on single patty only.
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Expired 04/18/17
Used 4 times today
