Glee's sixth season aired in 2015.
Glee (TV series) . On October 17 , 2013 , in the wake of the death of Cory Monteith three months prior , and one week after his tribute episode `` The Quarterback '' aired , Murphy announced that the sixth season would be the final one of the series . After 121 episodes and over 728 music performances , Glee came to an end on March 20 , 2015 .