The average train between Treharris and Swansea takes 2h and the fastest train takes 1h 40m. There is an hourly train service from Treharris to Swansea. 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 Treharris and Swansea. The earliest departure is at 6:25 AM in the morning, and the last departure from Treharris is at 10:53 PM which arrives into Swansea at 12:44 AM. All services require a transfer, and take on average 2h. The schedules shown below are for the next available departures.

1h 45m • 1 change

2h 9m • 1 change

1h 44m • 1 change

2h 5m • 1 change

1h 50m • 1 change

2h 7m • 1 change

2h 8m • 1 change

1h 45m • 1 change

1h 50m • 1 change

2h 7m • 1 change

2h 8m • 1 change

1h 45m • 1 change
Want to know about travelling from Treharris to Swansea? 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 Treharris to Swansea. However, there are services departing from Treharris station and arriving at Swansea station via Cardiff Central. The journey, including transfers, takes approximately 2h.
Treharris to Swansea train services, operated by Transport for Wales, depart from Quakers Yard station.
Treharris to Swansea train services, operated by Transport for Wales, arrive at Swansea station.
Book your Treharris to Swansea train tickets online with Transport for Wales and Great Western Railway (GWR).
The distance between Treharris and Swansea is 44.3 km. The road distance is 101 km.
You can take a train from Quakers Yard to Swansea via Cardiff Central in around 1h 52m.