The average train between Southampton and London St Pancras Intl takes 1h 38m and the fastest train takes 1h 27m. The train runs at least 2 times per hour from Southampton to London St Pancras Intl. 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 every 30 minutes between Southampton and London St Pancras Intl. The earliest departure is at 5:11 AM in the morning, and the last departure from Southampton is at 11:00 PM which arrives into London St Pancras Intl at 3:39 AM. All services require a transfer at London Waterloo Station and take an average of 1h 38m. The schedules shown below are for the next available departures.

1h 34m • 1 change

1h 31m • 1 change

1h 34m • 1 change

1h 36m • 1 change

2h 1m • 1 change

1h 54m • 1 change

1h 54m • 1 change

1h 33m • 1 change

1h 59m • 1 change

1h 55m • 1 change

1h 40m • 1 change

1h 41m • 1 change
Want to know about travelling from Southampton to London St Pancras Intl? 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 London St Pancras Intl. However, there are services departing from Southampton station and arriving at London St Pancras Intl station via London Waterloo. The journey, including transfers, takes approximately 1h 38m.
Southampton to London St Pancras Intl train services, operated by South Western Railway, depart from Southampton Central station.
Southampton to London St Pancras Intl train services, operated by South Western Railway, arrive at London Waterloo station.
Book your Southampton to London St Pancras Intl train tickets online with South Western Railway and London Underground (Tube).
The distance between Southampton and London St Pancras Intl is 113.1 km. The road distance is 131 km.
South Western Railway operates a train from Southampton Central to London Waterloo every 30 minutes. Tickets cost £30–75 and the journey takes 1h 16m.