Viewing the timetable for service T4
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Oedi / Delay T4
20th - 24th Jul 2026
Oherwydd bod Arddangosfa Frenhinol Cymru yn digwydd dros y 4 diwrnod nesaf, mae'n debyg y bydd oedi ar y T4 oherwydd traffig trwm yn ardal Builth Wells.
Due to the Royal Welsh Show taking place over the next 4 days there are delays to be expected to the T4 as a result of heavy traffic in the Builth Wells area. -
Amhariad ar y T4 / Disruption on the T4
2nd Jul 2026 onwards
Ni fydd yr T4 yn gallu gwasanaethu Free Street, Aberhonddu tan hysbysiad pellach (oherwydd gwaith ffordd sy'n gwneud hi'n amhosibl i gerbydau fawr basio drwyddi). Dylai teithwyr fynd i'r Orsaf Bws yn Aberhanddu.
The T4 will not be able to serve Free Street, Brecon until further notice (due to roadworks making it impossible for larger vehicles to pass through).
Passengers should make their way to the Bus Interchange.
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Route map
| Service T4 | Service T4 | Service T4 | Service T4 | Service T4 | Service T4 | Service T4 | Service T4 | Service T4 | Service T4 | Service T4 | Service T4 | Service T4 | Service T4 | Service T4 | Service T4 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Millennium Garden | - | 06:00 This stop is for pick up only | 06:05 This stop is for pick up only | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Lamb and Flag | - | 06:24 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Post Office | - | 06:34 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Llandinam Bus Shelter | - | - | 06:15 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Newtown Bus Station Stand 2 | - | - | 06:35 | - | 08:35 This stop is for pick up only | - | 10:05 This stop is for pick up only | - | 12:05 This stop is for pick up only | - | 14:05 This stop is for pick up only | - | 16:05 This stop is for pick up only | 18:05 This stop is for pick up only | - | 20:15 This stop is for pick up only |
| Dolfor Church | - | - | 06:49 | - | 08:49 | - | 10:19 | - | 12:19 | - | 14:19 | - | 16:19 | 18:19 | - | 20:29 |
| New Inn | - | - | 07:01 | - | 09:01 | - | 10:31 | - | 12:31 | - | 14:31 | - | 16:31 | 18:31 | - | 20:41 |
| Lion Hotel | - | - | 07:07 | - | 09:07 | - | 10:37 | - | 12:37 | - | 14:37 | - | 16:37 | 18:37 | - | 20:47 |
| Ithon View | - | - | 07:12 | - | 09:12 | - | 10:42 | - | 12:42 | - | 14:42 | - | 16:42 | 18:42 | - | 20:52 |
| Penybryn | - | - | 07:19 | - | 09:19 | - | 10:49 | - | 12:49 | - | 14:49 | - | 16:49 | 18:49 | - | 20:59 |
| Llandrindod Wells Interchange Stand 3 | - | - | 07:30 | - | 09:30 | - | 11:00 | - | 13:00 | - | 15:00 | - | 17:00 | 19:00 | - | 21:10 |
| Sunny Haven Park | - | - | 07:37 | - | 09:37 | - | 11:07 | - | 13:07 | - | 15:07 | - | 17:07 | 19:07 | - | 21:17 |
| St Matthew`s Church | - | - | 07:44 | - | 09:44 | - | 11:14 | - | 13:14 | - | 15:14 | - | 17:14 | 19:14 | - | 21:24 |
| Groe | - | 06:44 | 07:51 | - | 09:51 | - | 11:21 | - | 13:21 | - | 15:21 | - | 17:21 | 19:21 | - | 21:31 |
| Post Office | - | 06:57 | 08:03 | - | 10:03 | - | 11:33 | - | 13:33 | - | 15:33 | - | 17:33 | 19:33 | - | 21:43 |
| Boughrood Village | - | - | 08:10 | - | 10:10 | - | 11:40 | - | 13:40 | - | 15:40 | - | 17:40 | 19:40 | - | 21:50 |
| Griffin Inn | - | 07:04 | 08:14 | - | 10:14 | - | 11:44 | - | 13:44 | - | 15:44 | - | 17:44 | 19:44 | - | 21:54 |
| Griffin Inn | - | - | 08:23 | - | 10:23 | - | 11:53 | - | 13:53 | - | 15:53 | - | 17:53 | 19:53 | - | 22:03 |
| Newtown College | - | 07:16 | 08:30 | - | 10:30 | - | 12:00 | - | 14:00 | - | 16:00 | - | 18:00 | 20:00 | - | 22:10 |
| Brecon Interchange 1 | 06:24 This stop is for pick up only | 07:24 | 08:39 | 09:39 This stop is for pick up only | 10:35 | 11:09 This stop is for pick up only | 12:09 | 13:09 This stop is for pick up only | 14:09 | 15:09 This stop is for pick up only | 16:09 | 17:14 This stop is for pick up only | 18:14 | 20:03 This stop is for set down only | 20:14 This stop is for pick up only | 22:19 |
| Libanus | 06:35 | 07:35 | 08:50 | 09:50 | 10:46 | 11:20 | 12:20 | 13:20 | 14:20 | 15:20 | 16:20 | 17:25 | 18:25 | - | 20:25 | 22:30 |
| Storey Arms | 06:41 | 07:41 | 08:56 | 09:56 | 10:52 | 11:26 | 12:26 | 13:26 | 14:26 | 15:26 | 16:26 | 17:31 | 18:31 | - | 20:31 | 22:36 |
| Cyfarthfa Retail Park | 06:56 | 07:56 | 09:11 | 10:11 | 11:07 | 11:41 | 12:41 | 13:41 | 14:41 | 15:41 | 16:41 | 17:46 | 18:46 | - | 20:46 | 22:51 |
| Merthyr Bus Station Stand 13 | - | - | - | - | - | - | - | - | - | - | - | - | 18:49 This stop is for set down only | - | 20:49 This stop is for set down only | 22:54 This stop is for set down only |
| Merthyr Bus Station Stand 7 | 06:59 This stop is for set down only | 07:59 This stop is for set down only | 09:14 This stop is for set down only | 10:14 This stop is for set down only | 11:10 This stop is for set down only | 11:44 This stop is for set down only | 12:44 This stop is for set down only | 13:44 This stop is for set down only | 14:44 This stop is for set down only | 15:44 This stop is for set down only | 16:44 This stop is for set down only | 17:49 This stop is for set down only | - | - | - | - |