Popular Sonic Drive-In Promo Codes & Sales
| Discount | Description | Coupon | Expires |
|---|---|---|---|
| 25% Discount | Take 25% Discount on Never-discounted Top Sellers at Sonic Drive-in | TOP25 | July 2025 |
| 10% Discount | Take 10% Discount on Purchase at Sonic Drive-in | 1998 | July 2025 |
| Discount $5 | Discount $5 on Your Order at Sonic Drive-in | July40 | July 2025 |
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