<P> The season consisted of 20 episodes , in which ten episodes aired in the summer of 2016 , with the remaining ten episodes aired from April 2017 . The season 's premiere aired on June 21 , 2016 , on Freeform . Production and filming began in the end of March 2016 , which was confirmed by showrunner I. Marlene King . The season premiere was written by I. Marlene King and directed by Ron Lagomarsino . King revealed the title of the premiere on Twitter on March 17 , 2016 . On August 29 , 2016 , it was confirmed that this would be the final season of the series . </P>
how many episodes are in season 7 of pretty little liars
20