when does summer i turned pretty finale come out

The finale of "The Summer I Turned Pretty" Season 3, which is the final episode (Episode 11), was released on Wednesday, September 17, 2025. It became available for streaming on Prime Video starting at 12:00 a.m. Pacific Time (PT) / 3:00 a.m. Eastern Time (ET). In Australia, the release time was 5:00 p.m. AEST on the same day. This finale episode brings closure to the series based on Jenny Han's novels and has been highly anticipated by fans worldwide.