The average train between Portsmouth and Neath takes 4h 37m and the fastest train takes 3h 59m. There is a train service every few hours from Portsmouth to Neath. 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 Neath. The earliest departure is at 6:05 AM in the morning, and the last departure from Portsmouth is at 8:28 PM which arrives into Neath at 1:58 AM. All services require a transfer, and take on average 4h 37m. The schedules shown below are for the next available departures.

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4h 17m • 1 changeWant to know about travelling from Portsmouth to Neath? 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 Neath. However, there are services departing from Portsmouth & Southsea station and arriving at Neath station via Cardiff Central station. The journey, including transfers, takes approximately 4h 37m.
Portsmouth to Neath train services, operated by Great Western Railway (GWR), depart from Portsmouth & Southsea station.
Portsmouth to Neath train services, operated by Great Western Railway (GWR), arrive at Neath station.
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The distance between Portsmouth and Neath is 211.9 km. The road distance is 269 km.
You can take a train from Portsmouth & Southsea to Neath via Cardiff Central in around 4h 11m.