Route and timetable change.

27th Jul 2025 onwards

Revised timetable and route extension. Service route extended beyond Rickmansworth to Maple Cross, Uxbridge and Heathrow Airport. Journeys between Stevenage and Heathrow will operate Mondays to Saturdays. Journeys on sundays will operate between Watford and Heathrow Airport only. Service will be co-ordinated with service 724 timetable.