The average train between Barry and Southampton takes 3h 15m and the fastest train takes 3h 7m. There is a train service every few hours from Barry 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 Barry and Southampton. The earliest departure is at 5:54 AM in the morning, and the last departure from Barry is at 7:54 PM which arrives into Southampton at 11:06 PM. All services require a transfer, and take on average 3h 15m. The schedules shown below are for the next available departures.

3h 8m • 1 change

3h 10m • 1 change

3h 9m • 1 change

3h 8m • 1 change

3h 8m • 1 change

3h 10m • 1 change

3h 9m • 1 change

3h 8m • 1 change

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3h 9m • 1 change

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3h 8m • 1 change

3h 8m • 1 change

3h 19m • 1 change

3h 9m • 1 change
Want to know about travelling from Barry 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 Barry to Southampton. However, there are services departing from Barry station and arriving at Southampton station via Southampton Central. The journey, including transfers, takes approximately 3h 15m.
Barry to Southampton train services, operated by Transport for Wales, depart from Cardiff Central station.
Barry to Southampton train services, operated by Transport for Wales, arrive at Southampton Central station.
Book your Barry to Southampton train tickets online with Transport for Wales and Great Western Railway (GWR).
The distance between Barry and Southampton is 142.2 km. The road distance is 197 km.
Great Western Railway (GWR) operates a train from Cardiff Central to Southampton Central hourly. Tickets cost £50–100 and the journey takes 2h 34m.