The average train between Thornton Heath and Southampton takes 1h 51m and the fastest train takes 1h 33m. There is a train service every few hours from Thornton Heath 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 hourly between Thornton Heath and Southampton. The earliest departure is at 6:18 AM in the morning, and the last departure from Thornton Heath is at 11:43 PM which arrives into Southampton at 1:36 AM. All services require a transfer, and take on average 1h 51m. The schedules shown below are for the next available departures.

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1h 33m • 1 changeWant to know about travelling from Thornton Heath 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 Thornton Heath to Southampton. However, there are services departing from Clapham Junction station and arriving at Southampton Central station via Southampton Central station. The journey, including transfers, takes approximately 1h 51m.
Thornton Heath to Southampton train services, operated by South Western Railway, depart from Clapham Junction station.
Thornton Heath to Southampton train services, operated by South Western Railway, arrive at Southampton Central station.
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The distance between Thornton Heath and Southampton is 106.4 km. The road distance is 123 km.
South Western Railway operates a train from Clapham Junction to Southampton Central hourly. Tickets cost £27–60 and the journey takes 1h 9m.