Revised timetable.
27th Jul 2025 onwards
Revised timetable. Changes to Heathrow departure times. Certain journeys between Watford and Heathrow Airport withdrawn and replaced by new service route 725 on sundays.
Affected routes:
724
Harlow to Heathrow Airport
via Ware, Hertford, Welwyn Garden City, Hatfield, St Albans, Watford & Uxbridge