Watch Sword Art Online Season 4 Episode 6 Online. Best and Free Online streaming for Sword Art Online TV Show. We picked the best sites to stream s04e06. Simply pick a site below and click "Watch Now!" button next to it. Some of the links may be broken, please upvote the working and good links so other users see those links for Sword Art Online Season 4 Episode 6 s04e06 at the top of the list.