Stevenage, Welwyn Garden City, Finsbury Park, London St Pancras (Intl), Farringdon, London Blackfriars, London Bridge, Norwood Junction, East Croydon, Purley, Coulsdon South, Merstham, Redhill, Earlswood (Surrey), Salfords, Horley, Gatwick Airport, Three Bridges, Crawley, Ifield, Littlehaven, Horsham