The average train between Southampton and Castle Cary takes 2h 5m and the fastest train takes 1h 26m. There is a train service every few hours from Southampton to Castle Cary. 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 Castle Cary. The earliest departure is at 5:33 AM in the morning, and the last departure from Southampton is at 9:11 PM which arrives into Castle Cary at 10:40 PM. All services require a transfer, and take on average 2h 5m. The schedules shown below are for the next available departures.

1h 44m • 1 change

1h 49m • 1 change

2h 13m • 1 change

1h 53m • 1 change

1h 44m • 1 change

1h 49m • 1 change

2h 13m • 1 change

1h 53m • 1 change

1h 44m • 1 change

1h 49m • 1 change

2h 13m • 1 change

1h 53m • 1 change

1h 44m • 1 change

1h 49m • 1 change

2h 13m • 1 change

1h 53m • 1 change
Want to know about travelling from Southampton to Castle Cary? 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 Castle Cary. However, there are services departing from Southampton station and arriving at Castle Cary station via Westbury (Wilts). The journey, including transfers, takes approximately 2h 5m.
Southampton to Castle Cary train services, operated by Great Western Railway (GWR), depart from Southampton Central station.
Southampton to Castle Cary train services, operated by Great Western Railway (GWR), arrive at Castle Cary station.
Book your Southampton to Castle Cary train tickets online with Great Western Railway (GWR) and South Western Railway.
The distance between Southampton and Castle Cary is 80.4 km. The road distance is 110 km.
You can take a train from Southampton Central to Castle Cary via Westbury (Wilts) in around 2h 1m.