The average train between Penarth and Southampton takes 3h 7m and the fastest train takes 2h 57m. There is a train service every few hours from Penarth 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 Penarth and Southampton. The earliest departure is at 6:05 AM in the morning, and the last departure from Penarth is at 8:05 PM which arrives into Southampton at 11:06 PM. All services require a transfer, and take on average 3h 7m. The schedules shown below are for the next available departures.

2h 57m • 1 change

2h 58m • 1 change

2h 57m • 1 change

2h 57m • 1 change

2h 57m • 1 change

2h 59m • 1 change

2h 57m • 1 change

2h 57m • 1 change

2h 57m • 1 change

2h 59m • 1 change

2h 57m • 1 change

2h 57m • 1 change

2h 57m • 1 change

2h 59m • 1 change

2h 57m • 1 change

2h 57m • 1 change
Want to know about travelling from Penarth 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.
No, there is no direct train from Penarth to Southampton. However, there are services departing from Penarth station and arriving at Southampton station via Southampton Central. The journey, including transfers, takes approximately 3h 7m.
Penarth to Southampton train services, operated by Transport for Wales, depart from Cardiff Central station.
Penarth to Southampton train services, operated by Transport for Wales, arrive at Southampton Central station.
Book your Penarth to Southampton train tickets online with Transport for Wales and Great Western Railway (GWR).
The distance between Penarth and Southampton is 136.9 km. The road distance is 190 km.
Great Western Railway (GWR) operates a train from Cardiff Central to Southampton Central hourly. Tickets cost £50–100 and the journey takes 2h 33m.