| T 4 | Cardiff to Merthyr Tydfil | Only this direction, Mon to Fri (11 trips) Sat (every 60 mins) Sun (4 trips) | Stagecoach Wales | | T 4 | Merthyr Tydfil to Cardiff | Only this direction, Mon to Sat (10 trips) Sun (4 trips) | Stagecoach Wales | | T 4 | Cardiff to Dowlais Top | Only this direction, Sun (2 trips) | Stagecoach Wales | | T 4 | Dowlais Top to Cardiff | Only this direction, Sun (2 trips) | Stagecoach Wales | | T 4 | Cardiff to Brecon | Only this direction, Sun (1 trip) | Stagecoach Wales | | T 4 | Brecon to Cardiff | Only this direction, Mon to Sun (1 trip) | Stagecoach Wales | | T 4 | Brecon (Interchange) to Newtown | Only this direction, Mon to Fri (1 trip) Sat (2 trips) Sun (1 trip) | Stagecoach Wales | | T 4 | Newtown to Brecon (Interchange) | Only this direction, Mon to Sat (2 trips) Sun (1 trip) | Stagecoach Wales | | T 4 | Brecon (Interchange) to Newtown | Only this direction, Mon to Fri (1 trip) | Stagecoach Wales | | T 4 | Cardiff to Llandrindod Wells | Only this direction, Sun (1 trip) | Stagecoach Wales | | T 4 | Newtown to Merthyr Tydfil | Only this direction, MonTueWedThuSat (1 trip) | Stagecoach Wales | | T 4 | Newtown to Merthyr Tydfil | Only this direction, Mon to Fri (1 trip) | Stagecoach Wales | | T 4 | Cardiff to Crossgates | Only this direction, Mon to Sat (1 trip) | Stagecoach Wales | | T 4 | Crossgates to Cardiff | Early Mornings, this way only, Mon to Sat (1 trip) | Stagecoach Wales | | T 4 | Cardiff to Newtown | Only this direction, Mon to Sat (1 trip) Sun (3 trips) | Stagecoach Wales | | T 4 | Cardiff to Newtown | Only this direction, Mon to Sat (4 trips) | Stagecoach Wales | | T 4 | Newtown to Cardiff | Only this direction, Mon to Sat (1 trip) Sun (3 trips) | Stagecoach Wales | | T 4 | Newtown to Cardiff | Only this direction, Mon to Sat (4 trips) | Stagecoach Wales |