The CW originally planned to have Supergirl kick off its sixth and final season this summer. But due to coronavirus delays, Superman & Lois will go on a temporary hiatus. Supergirl will premiere on Tuesday, March 30 at 9 p.m. On May 18, Superman & Lois will take back the timeslot and finish its first season. Supergirl, meanwhile, will finish its final season over the summer. ALSO: Melissa Benoist returns to the Supergirl set for the first time since welcoming her first child.