The average train between Treforest and Penarth takes 53 min and the fastest train takes 44 min. The train runs at least 2 times per hour from Treforest to Penarth. 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 every 30 minutes between Treforest and Penarth. The earliest departure is at 5:17 AM in the morning, and the last departure from Treforest is at 5:51 PM which arrives into Penarth at 6:46 PM. All services require a transfer, and take on average 53 min. The schedules shown below are for the next available departures.

44 min • 1 change

45 min • 1 change

55 min • 1 change

55 min • 1 change
Want to know about travelling from Treforest to Penarth? 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 Treforest to Penarth. However, there are services departing from Treforest station and arriving at Penarth station via Cardiff Central. The journey, including transfers, takes approximately 53 min.
Treforest to Penarth train services, operated by Transport for Wales, depart from Trefforest station.
Treforest to Penarth train services, operated by Transport for Wales, arrive at Penarth station.
Book your Treforest to Penarth train tickets online with Transport for Wales.
The distance between Treforest and Penarth is 20.2 km. The road distance is 24 km.
You can take a train from Trefforest to Penarth via Cardiff Central in around 53 min.