Series Season Episodes Originally aired Showrunner(s) Status First aired Last aired Television series Arrow 1 23 October 10, 2012 (2012-10-10) May 15, 2013 (2013-05-15) Greg Berlanti, Andrew Kreisberg and Marc Guggenheim[26][27][28][29][30] Released 2 23 October 9, 2013 (2013-10-09) May 14, 2014 (2014-05-14) 3 23 October 8, 2014 (2014-10-08) May 13, 2015 (2015-05-13) Marc Guggenheim[31] 4 23 October 7, 2015 (2015-10-07) May 25, 2016 (2016-05-25) Wendy Mericle and Marc Guggenheim[32] 5 23 October 5, 2016 (2016-10-05) May 24, 2017 (2017-05-24) 6 23 October 12, 2017 (2017-10-12) May 17, 2018 (2018-05-17) 7 TBA October 15, 2018 (2018-10-15)[33] TBA Beth Schwartz[32] Filming The Flash 1 23 October 7, 2014 (2014-10-07) May 19, 2015 (2015-05-19) Andrew Kreisberg[34] Released 2 23 October 6, 2015 (2015-10-06) May 24, 2016 (2016-05-24) Andrew Kreisberg,[35] Gabrielle Stanton,[36] and Aaron and Todd Helbing[37] 3 23 October 4, 2016 (2016-10-04) May 23, 2017 (2017-05-23) Todd and Aaron Helbing,[38] and Andrew Kreisberg[39] 4 23 October 10, 2017 (2017-10-10) May 22, 2018 (2018-05-22) Andrew Kreisberg and Todd Helbing[32] 5 22[40] October 9, 2018 (2018-10-09)[33] TBA Todd Helbing[32] Filming Supergirl 1 20 October 26, 2015 (2015-10-26) April 18, 2016 (2016-04-18) Greg Berlanti, Ali Adler, Sarah Schechter and Andrew Kreisberg[41][42] Released 2 22 October 10, 2016 (2016-10-10) May 22, 2017 (2017-05-22) 3 23 October 9, 2017 (2017-10-09) June 18, 2018 (2018-06-18) Andrew Kreisberg, Jessica Queller and Robert Rovner[43] 4 TBA October 14, 2018 (2018-10-14)[33] TBA Jessica Queller and Robert Rovner[32] Filming Legends of Tomorrow 1 16 January 21, 2016 (2016-01-21) May 19, 2016 (2016-05-19) Phil Klemmer[44] and Chris Fedak[45] Released 2 17 October 13, 2016 (2016-10-13) April 4, 2017 (2017-04-04) 3 18 October 10, 2017 (2017-10-10) April 9, 2018 (2018-04-09) Phil Klemmer and Marc Guggenheim[32] 4 16[46] October 22, 2018 (2018-10-22)[33] TBA Phil Klemmer[32] Filming Web series Vixen 1 6 August 25, 2015 (2015-08-25) September 29, 2015 (2015-09-29) Greg Berlanti, Marc Guggenheim and Andrew Kreisberg[47] Released 2 6 October 13, 2016 (2016-10-13) November 18, 2016 (2016-11-18) Freedom Fighters: The Ray 1 6 December 8, 2017 (2017-12-08) Greg Berlanti and Marc Guggenheim[48] 2 6[lower-alpha 1] July 18, 2018 (2018-07-18) Constantine: City of Demons[49] 1 12[50] March 24, 2018 (2018-03-24) TBA Greg Berlanti and David S. Goyer[51]