Image Credit: Comedy Central/Paramount South Park ended season 27 and returned for season 28 rather quickly. Viewers were initially confused at the switch, considering that the previous season only consisted of five episodes. So, what does this mean for South Park's 28th round on the air? Here is all the information you need to know about season 28 of South Park. When Do South Park Season 28 Episodes Air? Episodes of South Park usually air on Wednesdays whenever a new episode drops. Twisted Christian: Cartman is possessed and may be the key to stopping the Antichrist.