When XII Corps was transferred west under the command of Major General Joseph Hooker later in 1863 to relieve the Army of the Cumberland besieged at Chattanooga, Candy was transferred with his brigade. It fought at the Battle of Wauhatchie. Candy was injured early in the Battle of Lookout Mountain, and he also missed the Battle of Ringgold Gap. When XII Corps and XI Corps were combined into Hooker's XX Corps of the Army of the Cumberland, Candy became commander of a brigade in Geary's second division. He led it in Major General William T. Sherman's Atlanta Campaign until August 4, 1864. Candy was mustered out of the volunteer service on January 14, 1865, and he received a brevet appointment as a brigadier general on March 13, 1865.