The series was officially picked up on May 6, 2015, after receiving a series commitment in September 2014, and received a full season order on November 30, 2015. On May 12, 2016, Warner Bros. Television announced that the series had been renewed for a second season and that it would move from CBS to The CW. It debuted on October 10, 2016. On January 8, 2017, The CW renewed the series for a third season, which began airing on October 9, 2017. As of October 9, 2017, 43 episodes of Supergirl have aired.
when does the next supergirl episode come out
October 9, 2017 October 9, 2017