The average train between Llandaff and Merthyr Tydfil takes 1h 57m and the fastest train takes 1h 12m. The train service runs several times per day from Llandaff 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 4 times a day between Llandaff and Merthyr Tydfil. The earliest departure is at 12:21 AM at night, and the last departure from Llandaff is at 8:50 PM which arrives into Merthyr Tydfil at 10:26 PM. All services require a transfer, and take on average 1h 57m. The schedules shown below are for the next available departures.

1h 38m • 1 change
1h 37m • 1 change
1h 37m • 1 change
1h 37m • 1 changeWant to know about travelling from Llandaff 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 Llandaff to Merthyr Tydfil. However, there are services departing from Llandaff station and arriving at Merthyr Tydfil station via Pontypridd. The journey, including transfers, takes approximately 1h 57m.
Llandaff to Merthyr Tydfil train services, operated by Transport for Wales, depart from Waun-gron Park station.
Llandaff to Merthyr Tydfil train services, operated by Transport for Wales, arrive at Merthyr Tydfil station.
Book your Llandaff to Merthyr Tydfil train tickets online with Transport for Wales.
The distance between Llandaff and Merthyr Tydfil is 30.3 km. The road distance is 34 km.
You can take a train from Waun-gron Park to Merthyr Tydfil via Pontypridd in around 1h 17m.