The final episode of "The Summer I Turned Pretty" Season 3 was released on Wednesday, September 17, 2025. It is the 11th episode of the season, titled "At Last," and it concluded the series based on Jenny Han's books. The episode became available for streaming on Prime Video at 12:00 a.m. PT / 3:00 a.m. ET, with different international times such as 8:00 a.m. BST in the UK and 5:00 p.m. AEST in Australia. This episode wraps up Belly's complicated love triangle and the overall story arc of the show.
