The average train between Portsmouth and Seaham takes 6h 37m and the fastest train takes 5h 38m. There is a train service every few hours from Portsmouth to Seaham. 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 Portsmouth and Seaham. The earliest departure is at 5:17 AM in the morning, and the last departure from Portsmouth is at 10:37 PM which arrives into Seaham at 10:08 AM. All services require a transfer at London Waterloo Station and take an average of 6h 37m. The schedules shown below are for the next available departures.



5h 47m • 3 changes



5h 55m • 3 changes



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5h 47m • 3 changes
Want to know about travelling from Portsmouth to Seaham? 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 Portsmouth to Seaham. However, there are services departing from Portsmouth station and arriving at Seaham station via London Waterloo. The journey, including transfers, takes approximately 6h 37m.
Portsmouth to Seaham train services, operated by South Western Railway, depart from Portsmouth & Southsea station.
Portsmouth to Seaham train services, operated by South Western Railway, arrive at Newcastle station.
Book your Portsmouth to Seaham train tickets online with South Western Railway, London Underground (Tube) and 2 other operators.
The distance between Portsmouth and Seaham is 449.6 km. The road distance is 579 km.
You can take a train from Portsmouth & Southsea to Seaham via London Waterloo Station, Waterloo station, Euston station, King's Cross, and Newcastle in around 5h 58m.