<P> The sixth season of the American ABC fantasy - drama Once Upon a Time was ordered on March 3 , 2016 . It debuted on September 25 , 2016 , and concluded on May 14 , 2017 . In January 2017 , it was stated that the sixth season would end the main storyline , and for a seventh season , the series would be softly rebooted with a new storyline . </P>
<P> The sixth season of the American ABC fantasy - drama Once Upon a Time was ordered on March 3 , 2016 . It debuted on September 25 , 2016 , and concluded on May 14 , 2017 . In January 2017 , it was stated that the sixth season would end the main storyline , and for a seventh season , the series would be softly rebooted with a new storyline . </P>
when does season 6 of once upon a time come out
when does season 6 of once upon a time come out
May 14 , 2017
May 14 , 2017