20 Jul. 2019 Supergirl Season 5 Trailer Drops at San Diego Comic Con We have our first recorded look into season 5 of Supergirl! Check out the trailer from San Diego Comic Con below. Season 5 of Supergirl premieres on October 6th, on the CW! About the author Rachel Migliore Legends of Tomorrow and Caity Lotz fangirl. Will fight you over Captain Canary. Tags Season 5 Supergirl Trailer Leave a Reply Click here to cancel reply. Name * Mail (Not published) * Website Comment * * fields required Notify me of follow-up comments by email. Notify me of new posts by email.