When does Supergirl return?

Supergirl is an American superhero drama television series that aired on CBS and later the CW from October 26, 2015, to November 9, 2021. It is based on the DC Comics character of the same name created by Otto Binder and Al Plastino. The series features Melissa Benoist in the title role. Kara Zor-El is Superman's cousin and one of the last surviving Kryptonians from the planet Krypton.