The average train between Southampton and Chepstow takes 3h 26m and the fastest train takes 3h 1m. There is a train service every few hours from Southampton to Chepstow. 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 Chepstow. 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 Chepstow at 9:12 AM. All services require a transfer, and take on average 3h 26m. The schedules shown below are for the next available departures.

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3h 4m • 1 changeWant to know about travelling from Southampton to Chepstow? 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 Chepstow. However, there are services departing from Southampton Central station and arriving at Newport (S Wales) station via Newport (S Wales) station. The journey, including transfers, takes approximately 3h 26m.
Southampton to Chepstow train services, operated by Great Western Railway (GWR), depart from Southampton Central station.
Southampton to Chepstow train services, operated by Great Western Railway (GWR), arrive at Newport (S Wales) station.
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The distance between Southampton and Chepstow is 120.6 km. The road distance is 146 km.
Great Western Railway (GWR) operates a train from Southampton Central to Newport (S Wales) hourly. Tickets cost £40–80 and the journey takes 2h 20m.