The average train between Penzance and Merthyr Tydfil takes 7h 38m and the fastest train takes 6h 5m. There is a train service every few hours from Penzance to Merthyr Tydfil. 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 Penzance and Merthyr Tydfil. The earliest departure is at 5:03 AM in the morning, and the last departure from Penzance is at 9:45 PM which arrives into Merthyr Tydfil at 10:03 AM. All services require a transfer at Plymouth and take an average of 7h 38m. The schedules shown below are for the next available departures.



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6h 18m • 3 changesWant to know about travelling from Penzance to Merthyr Tydfil? 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 Penzance to Merthyr Tydfil. However, there are services departing from Penzance station and arriving at Cardiff Central station via Plymouth station and Bristol Temple Meads station. The journey, including transfers, takes approximately 7h 38m.
Penzance to Merthyr Tydfil train services, operated by Great Western Railway (GWR), depart from Penzance station.
Penzance to Merthyr Tydfil train services, operated by Great Western Railway (GWR), arrive at Cardiff Central station.
Book your Penzance to Merthyr Tydfil train tickets online with Omio.
The distance between Penzance and Merthyr Tydfil is 236 km. The road distance is 363 km.
You can take a train from Penzance to Merthyr Tydfil via Plymouth, Bristol Temple Meads, and Cardiff Central in around 7h 9m.