The average train between Penarth and London takes 2h 29m and the fastest train takes 2h 5m. There is an hourly train service from Penarth to London. 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 Penarth and London. The earliest departure is at 6:05 AM in the morning, and the last departure from Penarth is at 11:36 PM which arrives into London at 7:16 AM. All services require a transfer, and take on average 2h 29m. The schedules shown below are for the next available departures.

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2h 9m • 1 changeWant to know about travelling from Penarth to London? 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 Penarth to London. However, there are services departing from Cardiff Central station and arriving at London Paddington station via London Paddington station. The journey, including transfers, takes approximately 2h 29m.
Penarth to London train services, operated by Great Western Railway (GWR), depart from Cardiff Central station.
Penarth to London train services, operated by Great Western Railway (GWR), arrive at London Paddington station.
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The distance between Penarth and London is 211.1 km. The road distance is 245 km.
Great Western Railway (GWR) operates a train from Cardiff Central to London Paddington hourly. Tickets cost £60–110 and the journey takes 1h 52m.