The average train between Southampton and Ystrad Mynach takes 3h 51m and the fastest train takes 3h 12m. There is a train service every few hours from Southampton to Ystrad Mynach. 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 Ystrad Mynach. 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 Ystrad Mynach at 9:24 AM. All services require a transfer, and take on average 3h 51m. The schedules shown below are for the next available departures.

3h 36m • 1 change

3h 33m • 1 change

3h 13m • 1 change

3h 31m • 1 change

3h 36m • 1 change

3h 33m • 1 change

3h 13m • 1 change

3h 31m • 1 change

3h 25m • 1 change

3h 33m • 1 change

3h 14m • 1 change

3h 32m • 1 change

3h 27m • 1 change

3h 27m • 1 change

3h 27m • 1 change

3h 27m • 1 change
Want to know about travelling from Southampton to Ystrad Mynach? 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 Southampton to Ystrad Mynach. However, there are services departing from Southampton station and arriving at Ystrad Mynach station via Cardiff Central. The journey, including transfers, takes approximately 3h 51m.
Southampton to Ystrad Mynach train services, operated by Great Western Railway (GWR), depart from Southampton Central station.
Southampton to Ystrad Mynach train services, operated by Great Western Railway (GWR), arrive at Cardiff Central station.
Book your Southampton to Ystrad Mynach train tickets online with Great Western Railway (GWR) and Transport for Wales.
The distance between Southampton and Ystrad Mynach is 151.6 km. The road distance is 206 km.
Great Western Railway (GWR) operates a train from Southampton Central to Cardiff Central hourly. Tickets cost £50–100 and the journey takes 2h 37m.