Glee's sixth season aired in 2015.
Glee is an American musical comedy-drama television series that aired on the Fox network in the United States from May 19 , 2009 , to March 20 , 2015 . The sixth and final season aired from January to March 2015 . 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 .