when is kings island open

Kings Island officially opens for the 2025 season on Saturday, April 19. The park hours vary throughout the season, with typical closing times around 9 PM and extended hours during peak times like Memorial Day weekend through early August, when the park may close as late as 10 PM. Early ride times for season pass holders start on opening day as well. So, you can visit Kings Island starting from April 19, 2025, to enjoy the full season of rides and attractions.