The average train between Helensburgh and Portsmouth takes 8h 49m and the fastest train takes 7h 32m. There is a train service every few hours from Helensburgh to Portsmouth. 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 hourly between Helensburgh and Portsmouth. The earliest departure is at 6:25 AM in the morning, and the last departure from Helensburgh is at 11:32 PM which arrives into Portsmouth at 12:57 PM. All services require a transfer at Partick and take an average of 8h 49m. The schedules shown below are for the next available departures.




7h 32m • 4 changes




7h 32m • 4 changes




7h 32m • 4 changes




7h 50m • 4 changes




7h 32m • 4 changes




7h 32m • 4 changes




7h 32m • 4 changes




7h 50m • 4 changes




7h 32m • 4 changes




7h 32m • 4 changes




7h 32m • 4 changes




7h 50m • 4 changes




7h 32m • 4 changes




7h 32m • 4 changes




7h 32m • 4 changes




7h 50m • 4 changes
Want to know about travelling from Helensburgh to Portsmouth? 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 Helensburgh to Portsmouth. However, there are services departing from Helensburgh station and arriving at Portsmouth station via London Euston. The journey, including transfers, takes approximately 8h 49m.
Helensburgh to Portsmouth train services, operated by ScotRail, depart from Glasgow Central station.
Helensburgh to Portsmouth train services, operated by ScotRail, arrive at Portsmouth & Southsea station.
Book your Helensburgh to Portsmouth train tickets online with ScotRail, Avanti West Coast and 3 other operators.
The distance between Helensburgh and Portsmouth is 626.9 km. The road distance is 797 km.
You can take a train from Helensburgh Central to Portsmouth & Southsea via Partick, Glasgow Central Low Level, Glasgow Central, London Euston, Euston station, Waterloo Station, and London Waterloo in around 7h 50m.