When does The Flash return?

The Flash premiered in the United States on The CW on October 7, 2014, and ran for nine seasons until May 24, 2023. It is a spin-off of Arrow, existing in the same fictional universe known as the Arrowverse. The series, together with Arrow, has spun characters out to their own show, Legends of Tomorrow, which premiered on January 21, 2016. The Flash is based on the Barry Allen incarnation of DC Comics character the Flash.