The average train between Swansea and Treharris takes 1h 55m and the fastest train takes 1h 31m. There is an hourly train service from Swansea to Treharris. 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 Swansea and Treharris. The earliest departure is at 3:46 AM at night, and the last departure from Swansea is at 9:23 PM which arrives into Treharris at 11:09 PM. All services require a transfer, and take on average 1h 55m. The schedules shown below are for the next available departures.

1h 52m • 1 change

1h 53m • 1 change

1h 51m • 1 change

1h 54m • 1 change

2h 28m • 1 change

1h 45m • 1 change

1h 45m • 1 change

1h 47m • 1 change

2h 28m • 1 change

1h 45m • 1 change

1h 45m • 1 change

1h 47m • 1 change
Want to know about travelling from Swansea to Treharris? 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 Swansea to Treharris. However, there are services departing from Swansea station and arriving at Treharris station via Cardiff Central. The journey, including transfers, takes approximately 1h 55m.
Swansea to Treharris train services, operated by Great Western Railway (GWR), depart from Swansea station.
Swansea to Treharris train services, operated by Great Western Railway (GWR), arrive at Quakers Yard station.
Book your Swansea to Treharris train tickets online with Great Western Railway (GWR) and Transport for Wales.
The distance between Swansea and Treharris is 44.3 km. The road distance is 101 km.
You can take a train from Swansea to Quakers Yard via Cardiff Central in around 2h 17m.