To get to Merthyr Tydfil by car, start at Cardiff and take the A470 north for approximately 20 miles.
If traveling by train, take the train from Cardiff Central Station to Merthyr Tydfil Station. The journey takes approximately 45 minutes.
For those traveling from Swansea, take the M4 east towards Cardiff and then follow the A470 north to Merthyr Tydfil.
If traveling from Hereford, take the A465 south east towards Abergavenny and then follow the A40 southeast towards Brecon. Take the A470 south the rest of the way to Merthyr Tydfil.
Alternatively, if traveling from Bristol, take the M32 east towards Bath and then follow the A420 east towards Chippenham. Continue onto the A4 east towards Marlborough and then onto the A346 north. Finally, take the A419 north towards Cirencester and then follow the A417 east towards Lechlade. Take the A361 northeast through Burford and follow the A40 east towards Oxford. Take the M40 north and then the M42 east towards Birmingham. Finally, take the M5 north towards Worcester and then the A465 west towards Hereford. Follow the A465 south east towards Abergavenny and then follow the A40 southeast towards Brecon. Take the A470 south the rest of the way to Merthyr Tydfil.
Overall, the best way to get to Merthyr Tydfil will depend on your starting location and mode of transportation.
The closest airport to Merthyr Tydfil is Cardiff Airport, approximately 30 miles away. To get to Merthyr Tydfil from Cardiff Airport, the best route is to take the A48 road to the A470, leading to the town. It takes around 45 minutes by car, depending on traffic conditions.