The average train between Castle Cary and Southampton takes 2h 47m and the fastest train takes 1h 48m. The train service runs several times per day from Castle Cary 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 4 times a day between Castle Cary and Southampton. The earliest departure is at 7:12 AM in the morning, and the last departure from Castle Cary is at 10:20 PM which arrives into Southampton at 6:31 AM. All services require a transfer, and take on average 2h 47m. The schedules shown below are for the next available departures.

1h 50m • 1 change

1h 48m • 1 change

1h 52m • 1 change

1h 50m • 1 change

1h 50m • 1 change

1h 48m • 1 change

1h 52m • 1 change

1h 50m • 1 change

1h 50m • 1 change

1h 48m • 1 change

1h 52m • 1 change

1h 50m • 1 change
Want to know about travelling from Castle Cary 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 Castle Cary to Southampton. However, there are services departing from Castle Cary station and arriving at Southampton station via Salisbury. The journey, including transfers, takes approximately 2h 47m.
Castle Cary to Southampton train services, operated by South Western Railway, depart from Castle Cary station.
Castle Cary to Southampton train services, operated by South Western Railway, arrive at Southampton Central station.
Book your Castle Cary to Southampton train tickets online with South Western Railway and Great Western Railway (GWR).
The distance between Castle Cary and Southampton is 80.4 km. The road distance is 110 km.
You can take a train from Castle Cary to Southampton Central via Salisbury in around 1h 52m.