The average train between Slough and Barry takes 3h 7m and the fastest train takes 2h 26m. There is an hourly train service from Slough to Barry. 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 Slough and Barry. The earliest departure is at 5:22 AM in the morning, and the last departure from Slough is at 10:52 PM which arrives into Barry at 5:40 AM. All services require a transfer at Reading and take an average of 3h 7m. The schedules shown below are for the next available departures.


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2h 53m • 2 changesWant to know about travelling from Slough to Barry? 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 Slough to Barry. The journey, including transfers, takes approximately 3h 7m.
Slough to Barry train services, operated by Great Western Railway (GWR), depart from Reading station.
Slough to Barry train services, operated by Great Western Railway (GWR), arrive at Cardiff Central station.
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The distance between Slough and Barry is 186.7 km. The road distance is 219 km.
Great Western Railway (GWR) operates a train from Reading to Cardiff Central hourly. Tickets cost £45–85 and the journey takes 1h 26m.