The average train between Watford and Southampton Port takes 3h 18m and the fastest train takes 2h 43m. There is a train service every few hours from Watford to Southampton Port. 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 Watford and Southampton Port. The earliest departure is at 5:54 AM in the morning, and the last departure from Watford is at 11:42 PM which arrives into Southampton Port at 6:35 AM. All services require a transfer at London Euston and take an average of 3h 18m. The schedules shown below are for the next available departures.


2h 45m • 2 changes


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2h 48m • 2 changes
Want to know about travelling from Watford to Southampton Port? 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 Watford to Southampton Port. However, there are services departing from Watford station and arriving at Southampton Port station via Southampton Central. The journey, including transfers, takes approximately 3h 18m.
Watford to Southampton Port train services, operated by Southern, depart from London Waterloo station.
Watford to Southampton Port train services, operated by Southern, arrive at Southampton Central station.
Book your Watford to Southampton Port train tickets online with Southern and South Western Railway.
The distance between Watford and Southampton Port is 110.7 km. The road distance is 161 km.
South Western Railway operates a train from London Waterloo to Southampton Central every 30 minutes. Tickets cost £30–75 and the journey takes 1h 14m.