The average train between Harpenden and Great Portland Street (Station) takes 38 min and the fastest train takes 33 min. The train runs at least 5 times per hour from Harpenden to Great Portland Street (Station). 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 15 minutes between Harpenden and Great Portland Street (Station). The earliest departure is at 12:22 PM in the afternoon, and the last departure from Harpenden is at 8:52 PM which arrives into Great Portland Street (Station) at 9:26 PM. All services require a transfer at London St Pancras International and take an average of 38 min. The schedules shown below are for the next available departures.

34 min • 1 change

42 min • 1 change

33 min • 1 change

34 min • 1 change
Want to know about travelling from Harpenden to Great Portland Street (Station)? 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 Great Portland Street (Station). However, there are services departing from Harpenden station and arriving at Great Portland Street (Station) station via London St Pancras Intl. The journey, including transfers, takes approximately 38 min.
Harpenden to Great Portland Street (Station) train services, operated by Thameslink, depart from Harpenden station.
Harpenden to Great Portland Street (Station) train services, operated by Thameslink, arrive at London St Pancras Intl station.
The distance between Harpenden and Great Portland Street (Station) is 35.7 km. The road distance is 41 km.
Thameslink operates a train from Harpenden to London St Pancras Intl every 15 minutes. Tickets cost £12–25 and the journey takes 28 min.