The average train between Bangor and Treforest takes 4h 53m and the fastest train takes 4h 40m. The train service runs several times per day from Bangor to Treforest. 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 4 hours between Bangor and Treforest. The earliest departure is at 4:57 AM at night, and the last departure from Bangor is at 5:06 PM which arrives into Treforest at 9:52 PM. All services require a transfer, and take on average 4h 53m. The schedules shown below are for the next available departures.

4h 52m • 1 change

4h 58m • 1 change

4h 49m • 1 change

4h 48m • 1 change

4h 52m • 1 change

4h 58m • 1 change

4h 49m • 1 change

4h 48m • 1 change

4h 52m • 1 change

4h 58m • 1 change

4h 49m • 1 change

4h 48m • 1 change

4h 52m • 1 change

4h 58m • 1 change

4h 49m • 1 change

4h 48m • 1 change

4h 52m • 1 change

4h 58m • 1 change

4h 49m • 1 change

4h 48m • 1 change

4h 56m • 1 change

4h 49m • 1 change

4h 48m • 1 change

4h 46m • 1 change
Want to know about travelling from Bangor to Treforest? 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 Bangor to Treforest. However, there are services departing from Bangor station and arriving at Treforest station via Cardiff Central. The journey, including transfers, takes approximately 4h 53m.
Bangor to Treforest train services, operated by Transport for Wales, depart from Bangor (Gwynedd) station.
Bangor to Treforest train services, operated by Transport for Wales, arrive at Cardiff Central station.
Book your Bangor to Treforest train tickets online with Transport for Wales.
The distance between Bangor and Treforest is 189.7 km. The road distance is 352 km.
Transport for Wales operates a train from Bangor (Gwynedd) to Cardiff Central every 4 hours. Tickets cost £80–140 and the journey takes 4h 12m.