Adventure Time - watch online: streaming, buy or rent
Currently you are able to watch "Adventure Time" streaming on Hulu, Max, Max Amazon Channel, Max Originals Amazon Channel or buy it as download on Apple TV, Fandango At Home, Amazon Video, Microsoft Store.
There aren't any free streaming options for Adventure Time right now. If you want know when it is streaming for free, click 'Free' in the filters above and hit the notification bell.