The average train between Mountain Ash and Llanelli takes 2h 51m and the fastest train takes 2h 18m. There is a train service every few hours from Mountain Ash to Llanelli. 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 Mountain Ash and Llanelli. The earliest departure is at 6:02 AM in the morning, and the last departure from Mountain Ash is at 11:02 PM which arrives into Llanelli at 7:13 AM. All services require a transfer, and take on average 2h 51m. The schedules shown below are for the next available departures.

2h 32m • 1 change

2h 29m • 1 change

2h 18m • 1 change

2h 32m • 1 change

2h 32m • 1 change

2h 29m • 1 change

2h 18m • 1 change

2h 32m • 1 change

2h 32m • 1 change

2h 29m • 1 change

2h 18m • 1 change

2h 32m • 1 change
Want to know about travelling from Mountain Ash to Llanelli? 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 Mountain Ash to Llanelli. However, there are services departing from Mountain Ash station and arriving at Llanelli station via Cardiff Central. The journey, including transfers, takes approximately 2h 51m.
Mountain Ash to Llanelli train services, operated by Transport for Wales, depart from Mountain Ash station.
Mountain Ash to Llanelli train services, operated by Transport for Wales, arrive at Llanelli station.
Book your Mountain Ash to Llanelli train tickets online with Transport for Wales and Great Western Railway (GWR).
The distance between Mountain Ash and Llanelli is 54.2 km. The road distance is 122 km.
You can take a train from Mountain Ash to Llanelli via Cardiff Central in around 2h 33m.