Popsugar Entertainment The Flash The Flash Season 2 Details Here's What We Know About Season 2 of The Flash! October 5, 2015 by Maggie Panos View On One Page Photo 1 of 8 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 The Premiere Date The new season will debut on Oct. 6, as evidenced by this electric poster for season two. Previous Next Start Slideshow The FlashCelebritiesFall TVTV