Downton Abbey: The Grand Finale is already available for streaming through digital video-on-demand services such as Prime Video, Apple TV+, and Fandango At Home since September 30, 2025, for purchase or rental. However, streaming on the Peacock service is expected later, likely around December 2025 or January 2026, a few months after its theatrical release in September 2025. The film was released in theaters on September 12, 2025, and also will be out on 4K Ultra HD, Blu-ray, and DVD on November 11, 2025.