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The average train between Cardiff and Southampton takes 2h 34m and the fastest train takes 2h 31m. There is a train service every few hours from Cardiff to Southampton. 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 Cardiff and Southampton. The earliest departure is at 6:28 AM in the morning, and the last departure from Cardiff is at 8:30 PM which arrives into Southampton at 11:06 PM. All services run direct with no transfers required, and take on average 2h 34m. The schedules shown below are for the next available departures.
Want to know about travelling from Cardiff to Southampton? 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 Cardiff Central station and arriving at Southampton Central station. Services depart hourly, and operate every day. The journey takes approximately 2h 34m.
Cardiff to Southampton train services, operated by Great Western Railway (GWR), depart from Cardiff Central station.
Cardiff to Southampton train services, operated by Great Western Railway (GWR), arrive at Southampton Central station.
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The distance between Cardiff and Southampton is 139.3 km. The road distance is 180 km.
Great Western Railway (GWR) operates a train from Cardiff Central to Southampton Central hourly. Tickets cost £45–90 and the journey takes 2h 32m.
