 In 1933 the Metropolitan Railway was taken into public ownership to become the Metropolitan line of the London Passenger Transport Board's London Underground, including Quainton Road. The LPTB aimed to move away from freight operations, and saw no way in which the rural parts of the MR could be made into viable passenger routes. In 1935 the Brill Tramway was closed. From 1936 Underground trains were withdrawn north of Aylesbury, leaving the London and North Eastern Railway (successor to the GCR) as the only operator using the station, although Underground services were restored for a short period in the 1940s. In 1963 stopping passenger services were withdrawn but fast passenger trains continued to pass through. In 1966 the line was closed to passenger traffic and local goods trains ceased using the station. The line through the station was singled and used by occasional freight trains only.
