SONIC x Grillo’s Pickles Seasoned Tots or Groovy Fries: Choose from SONIC Tots or Groovy Fries covered in Grillo’s Pickle seasoning, starting at $2.99 for a medium.

Summer just got a whole lot sweeter thanks to Sonic’s nostalgic slush revival. After disappearing from menus for years, Watermelon and Lemonberry are finally making a splashy return. Fans have ...

Sonic is also offering half-price Sonic shakes in any size or flavor after 5 p.m. starting May 19. "Nothing says summer like a cool treat after a hot day," Sonic said.

Sonic will be offering its Double Sonic Smasher for just $1, starting on April 21. The burger includes two smashed patties, American cheese, pickles, onions, and Smasher sauce on a potato bun.