Interstellar - watch online: streaming, buy or rent
Currently you are able to watch "Interstellar" streaming on Amazon Prime Video, Viaplay, HBO Max. It is also possible to buy "Interstellar" on Apple TV, Microsoft Store, Rakuten TV, Blockbuster, SF Anytime as download or rent it on Apple TV, Microsoft Store, Rakuten TV, Blockbuster, SF Anytime online.
There aren't any free streaming options for Interstellar right now. If you want know when it is streaming for free, click 'Free' in the filters above and hit the notification bell.