The average train between Harpenden and Thames Barrier takes 55 min and the fastest train takes 50 min. The train runs at least 3 times per hour from Harpenden to Thames Barrier. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run every 20 minutes between Harpenden and Thames Barrier. The earliest departure is at 4:59 AM at night, and the last departure from Harpenden is at 9:52 PM which arrives into Thames Barrier at 11:52 PM. All services require a transfer at Farringdon and take an average of 55 min. The schedules shown below are for the next available departures.

1h 11m • 1 change

58 min • 1 change

53 min • 1 change

54 min • 1 change
Want to know about travelling from Harpenden to Thames Barrier? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct train from Harpenden to Thames Barrier. However, there are services departing from Harpenden station and arriving at Thames Barrier station via Farringdon. The journey, including transfers, takes approximately 55 min.
Harpenden to Thames Barrier train services, operated by Thameslink, depart from Harpenden station.
Harpenden to Thames Barrier train services, operated by Thameslink, arrive at Woolwich Dockyard station.
Book your Harpenden to Thames Barrier train tickets online with Thameslink and Elizabeth Line (TfL).
The distance between Harpenden and Thames Barrier is 44.8 km. The road distance is 55 km.
You can take a train from Harpenden to Woolwich Dockyard via Farringdon and Farringdon Without in around 55 min.