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The TrawsCymru T4 service is your direct link between Cardiff and Newtown, offering high quality, environmentally friendly travel and value for money fares.

Please note that due to the impact of Covid 19 this service is subject to timetable changes. Please telephone 0300 200 22 33 for up to date information.


Operating up to 7 times a day, the service provides:

  • Improved links between Powys, Merthyr Tydfil and Cardiff
  • Better connections to other bus and rail services along the route, low floor buses with more luggage space, coach seats and tables, improved ticketing and more attractive departure times
  • New facilities at Brecon
  • Minicom facilities
  • Free Wi-Fi
  • Serves - Lower St. Marys Street (JP) – Cardiff City Centre
  • This service is operated by Stagecoach
  • Revised and improved TrawsCymru T4 timetable to be introduced on Sunday 2 September 2018
  • More Sunday journeys
  • Combined hourly service with T14 on weekdays and Saturdays between Brecon and Cardiff
  • Attractive fares on offer
T4 Timetable