The finale of "The Summer I Turned Pretty" (TSITP) Season 3, Episode 11, is released on Wednesday, September 17, 2025. It will be available for streaming on Prime Video at 12:00 a.m. Pacific Time (PT) / 3:00 a.m. Eastern Time (ET). International release times include 12:30 p.m. India Standard Time, 5:00 p.m. Australian Eastern Time, and 8:00 a.m. British Summer Time, among others. This last episode is the finale of the series and brings closure to the story, adapted from Jenny Han's novels.

To watch the finale, a subscription to Amazon Prime Video is required. This finale episode is a bit longer than usual, running approximately 77 minutes.