The "Staines, Wokingham and Woking Junction Railway" opened the station when it reached Ascot on 4 June 1856. On 9 July the line was extended to . On 18 March 1878 Ascot became a junction when the line towards was opened. Later the London and South Western Railway took over the SWWJR. In the Grouping of 1923 the L&SWR became part of the Southern Railway, which electrified both lines using a third rail system on 1 January 1939. Under nationalisation in 1948 Ascot station became part of the Southern Region of British Railways.