The average train between Southampton and Cardiff takes 2h 39m and the fastest train takes 2h 31m. There is a train service every few hours from Southampton to Cardiff. 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 Southampton and Cardiff. The earliest departure is at 6:47 AM in the morning, and the last departure from Southampton is at 9:12 PM which arrives into Cardiff at 11:56 PM. All services run direct with no transfers required, and take on average 2h 39m. The schedules shown below are for the next available departures.
Want to know about travelling from Southampton to Cardiff? 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.
Yes, there is a direct train departing from Southampton station and arriving at Cardiff station. Services depart hourly, and operate Once daily. The journey takes approximately 2h 39m.
Southampton to Cardiff train services, operated by Great Western Railway (GWR), depart from Southampton Central station.
Southampton to Cardiff train services, operated by Great Western Railway (GWR), arrive at Cardiff Central station.
Book your Southampton to Cardiff train tickets online with Great Western Railway (GWR).
The distance between Southampton and Cardiff is 139.3 km. The road distance is 184 km.
Great Western Railway (GWR) operates a train from Southampton Central to Cardiff Central hourly. Tickets cost £50–95 and the journey takes 2h 38m.
