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SONIC is showing their appreciation to their customers with FREE Food! First up in the SONIC® month of appreciation—a FREE Burger with a $5 purchase. Only available for a 1x use. Unlock a new deal each week and let the wins begin!
Reward is valid one time through May 31, 2026, for one (1) free Double SONIC Smasher™, All-American SONIC Smasher, or SONIC® Cheeseburger with a purchase of $5 or more when you order and redeem online or in the SONIC® App as a registered user. Tax and add-ons cost extra. Not valid with Combos, delivery or any other offers. Mobile ordering available only at select locations; hours may vary. ???