T4 Llanidloes to Merthyr Tydfil via Llandrindod Wells, Brecon
Operated by Celtic Travel. First bus 06:00, last bus 20:10. 18 journeys on weekdays. Fares: set by the operator — more.
Wanted a different T4? 4 other bus routes are numbered T4 elsewhere in the UK — see every T4 bus timetable by area.
Notes from Celtic Travel's timetable
- On Request only contuines on set down only to Llanidloes, Millenium Garden — 18:18 towards Llanidloes, Millennium Garden, 19:06 towards Llanidloes, Millennium Garden, 20:10 towards Llanidloes, Millennium Garden
- On Request only continues on set down only to Brecon Beacons College — 08:04 towards Brecon
Ends at Merthyr Tydfil, Merthyr Bus St Stand 7, at · Monday to Friday · 9 journeys
| Stop | 06:00 | 06:05 | 09:39 | 11:09 | 13:09 | 12:07 | 15:09 | 17:14 | 18:07 |
|---|---|---|---|---|---|---|---|---|---|
| Millennium Garden (nr) | 06:00 | 06:05 | · | · | · | · | · | · | · |
| Dolfach-isaf (nr) | 06:10 | · | · | · | · | · | · | · | · |
| Pont Marteg (before) | 06:19 | · | · | · | · | · | · | · | · |
| Llanwrthwl Bridge (before) | 06:28 | · | · | · | · | · | · | · | · |
| Argoed Mill (o/s) | 06:29 | · | · | · | · | · | · | · | · |
| Dolwen Turn (before) | · | 06:10 | · | · | · | · | · | · | · |
| Llandinam Bus Shelter (o/s) | · | 06:15 | · | · | · | · | · | · | · |
| Flying Shuttle (nr) | · | 06:27 | · | · | · | · | · | · | · |
| Plantation Lane (before) | · | 06:37 | · | · | · | 12:07 | · | · | 18:07 |
| Dolfor Church (before) | · | 06:49 | · | · | · | 12:19 | · | · | 18:19 |
| Llaithddu Turn (before) | · | 06:55 | · | · | · | 12:25 | · | · | 18:25 |
| Llananno Bridge (after) | · | 07:05 | · | · | · | 12:35 | · | · | 18:35 |
| Ithon View (nr) | · | 07:12 | · | · | · | 12:42 | · | · | 18:42 |
| Crossways (opp) | · | 07:14 | · | · | · | 12:44 | · | · | 18:44 |
| Penybryn (before) | · | 07:19 | · | · | · | 12:49 | · | · | 18:49 |
| Howey Village (after) | · | 07:35 | · | · | · | 13:05 | · | · | 19:05 |
| St Matthew`s Church (before) | · | 07:44 | · | · | · | 13:14 | · | · | 19:14 |
| Post Office (nr former) | 06:57 | 08:03 | · | · | · | 13:33 | · | · | 19:33 |
| Griffin Inn (opp) | 07:04 | 08:14 | · | · | · | 13:44 | · | · | 19:44 |
| Pontybat Crossroads (after) | 07:07 | 08:19 | · | · | · | 13:49 | · | · | 19:49 |
| Brecon Interchange 1 (at) | 07:24 | 08:39 | 09:39 | 11:09 | 13:09 | 14:09 | 15:09 | 17:14 | 20:03 |
| Libanus (at) | 07:35 | 08:50 | 09:50 | 11:20 | 13:20 | 14:20 | 15:20 | 17:25 | · |
| Nant Ddu Lodge (opp) | 07:46 | 09:01 | 10:01 | 11:31 | 13:31 | 14:31 | 15:31 | 17:36 | · |
| Forest Mountain Centre (nr) | 07:48 | 09:03 | 10:03 | 11:33 | 13:33 | 14:33 | 15:33 | 17:38 | · |
| Merthyr Bus Station 7 | 07:59 | 09:14 | 10:14 | 11:44 | 13:44 | 14:44 | 15:44 | 17:49 | · |
Each column is one journey, headed by the time it sets off; one that finishes short of the usual end says where ("to …") — not every journey on this route runs the whole way. A · means that journey does not stop there. Times are shown at the route's main timing stops — buses serve all stops in between. Switch a table to All stops for every stop it calls at, or open a stop's own page for live departures there.
The England fare cap doesn't apply in Wales — Celtic Travel sets the fares on the T4. Check their website or the Traveline Cymru fare finder for current prices. Who travels free →
Christmas & bank holidays
These dates are not the usual timetable for the day they fall on. They come from the operator’s published data, which for Christmas and New Year is often late or incomplete, so check with Celtic Travel before you travel. Everything above is an ordinary week.
- Christmas Day — Friday, 25 December 2026 towards Merthyr Tydfil: 9 journeys, first 06:50 towards Llanidloes: 9 journeys, first 08:25 Few buses run on Christmas Day, so check with Celtic Travel before relying on this.
- Boxing Day — Saturday, 26 December 2026 towards Merthyr Tydfil: 9 journeys, first 06:50 towards Llanidloes: 9 journeys, first 08:25
- New Year's Day — Friday, 1 January 2027 towards Merthyr Tydfil: 9 journeys, first 06:50 towards Llanidloes: 9 journeys, first 08:25
Route map
All stops on route T4
T4 towards Merthyr Tydfil
All 81 stops
- Millennium Garden (nr) Llanidloes
- Hillfield (opp) Llanidloes
- Llanidloes High School (opp) Llanidloes
- Cwmbelan Turn (after) Llanidloes
- Bwlch-y-garreg (nr) Cwmbelan
- Dolfach-isaf (nr) Dolfach
- Pont Marteg (before) Nantserth
- Lamb and Flag Rhayader
- Bryn Gwy (after) Rhayader
- Llanwrthwl Bridge (before) Llanwrthwl
- Post Office (opp) Doldowlod
- Argoed Mill (o/s) Argoed
- Post Office (before) Newbridge on Wye
- New Inn (o/s) Newbridge on Wye
- Newbridge-on-Wye Primary School (o/s) Newbridge on Wye
- Red Lion Hotel (o/s) Llanidloes
- Llanidloes Army Cadet Centre (o/s) Llanidloes
- Dolwen Turn (before) Dolwen
- Llandinam Bus Shelter (o/s) Llandinam
- Penstrowed Bridge (before) Newtown
- Newtown College (o/s) Mochdre
- Flying Shuttle (nr) Trehafren
- Hill View Close (after) Trehafren
- Ladywell House (before) Newtown
- Park Street Newtown
- Newtown Bus Station Stand 2 Newtown
- Plantation Lane (before) Garth Owen
- Garrig Layby (E-bound) Dolfor
- Dolfor Church (before) Dolfor
- Camnant (nr) Camnant
- Llaithddu Turn (before) Llaithddu
- Dolaucwmffrwd Turn (opp) Llanbadarn Fynydd
- New Inn (before) Llanbadarn Fynydd
- Maes-yr-helem Bridge (after) Llanbadarn Fynydd
- Llananno Bridge (after) Llananno
- Lion Hotel (before) Llanbister
- Ithon View (nr) Llanddewi Ystradenny
- St David`s Church (before) Llanddewi Ystradenny
- Crossways (opp) Crossway
- Rock Road (before) Fron
- Tan-y-Fron (o/s) Fron
- Builders Arms (before) Crossgates
- Penybryn (before) Crossgates
- Swiss Villa (opp) Llandrindod Wells
- Tremont Road (o/s Celf Centre) Llandrindod Wells
- Llandrindod Wells Interchange Stand 3 Llandrindod Wells
- Post Office (before) Llandrindod Wells
- Auto Palace (before) Llandrindod Wells
- Grosvenor Stores (before) Llandrindod Wells
- Ridgebourne (o/s) Llandrindod Wells
- Pentrosfa (o/s) Llandrindod Wells
- Howey Village (after) Howey
- Llwyn-dderw (nr) Howey
- Sunny Haven Park (opp) Crossway
- St Matthew`s Church (before) Llanelwedd
- Groe (at) Builth Wells
- Josephs Pitch (opp) Builth Wells
- Post Office (nr former) Erwood
- Boughrood Village (at) Boughrood
- Griffin Inn (opp) Llyswen
- Pontybat Crossroads (after) Llanfilo
- Griffin Inn (opp) Felinfach
- Felinfach Turn (after) Felinfach
- Bishop's Meadow (opp) Brecon
- Brecon College (opp) Brecon
- Breconshire War Memorial Hospital (o/s) Brecon
- Brecon Interchange 1 (at) Brecon
- Free Street (o/s 3) Brecon
- St David's Church (after) Llanfaes
- Libanus (at) Libanus
- Llwyn y Celyn (o/s) Libanus
- Storey Arms (o/s) Glyn Tarell
- Nant Ddu Lodge (opp) Nant-ddu
- Forest Mountain Centre (nr) Llwyn-On
- Llwyn-on Village (before) Llwyn-On
- Cyfarthfa Retail Park (in) Georgetown
- Christ Church (o/s) Georgetown
- Kirkhouse Memorial Hall (after) Georgetown
- RAFA Club (opp) Georgetown
- Merthyr Bus Station 13 Merthyr Tydfil
- Merthyr Bus Station 7 Merthyr Tydfil
T4 towards Llanidloes
All 80 stops
- Merthyr Bus Station 2 Merthyr Tydfil
- Merthyr Bus Station 13 Merthyr Tydfil
- Merthyr Tydfil College (nr) Merthyr Tydfil
- RAFA Club (o/s) Georgetown
- Kirkhouse Memorial Hall (o/s) Georgetown
- Christ Church (opp) Georgetown
- Cyfarthfa Retail Park (in) Georgetown
- Llwyn-on Village (after) Llwyn-On
- Forest Visitor Centre (nr) Llwyn-On
- Nant Ddu Lodge (o/s) Nant-ddu
- Storey Arms (opp) Glyn Tarell
- Llwyn y Celyn (opp) Libanus
- Libanus (at) Libanus
- St David`s Church (opp) Llanfaes
- Bulwark (before) Brecon
- Brecon Interchange 2 (at) Brecon
- Breconshire War Memorial Hospital (opp) Brecon
- Brecon College (o/s) Brecon
- Bishop's Meadow (o/s) Brecon
- Felinfach Turn (before) Felinfach
- Griffin Inn (opp) Felinfach
- Pontybat Crossroads (after) Llanfilo
- Griffin Inn (o/s) Llyswen
- Boughrood Village (at) Boughrood
- Griffin Inn (o/s) Boughrood
- Erwood Inn (opp) Erwood
- Josephs Pitch (before) Builth Wells
- Groe (at) Builth Wells
- Buith Road Turn (after) Builth Road
- Newbridge-on-Wye Primary (opp) Newbridge on Wye
- New Inn (opp) Newbridge on Wye
- Post Office (after) Newbridge on Wye
- Argoed Mill (opp) Argoed
- Post Office (o/s) Doldowlod
- Llanwrthwl Bridge (after) Llanwrthwl
- Bryn Gwy (opp) Rhayader
- o/s Lamb and Flag Rhayader
- Pont Marteg (after) Nantserth
- Dolfach-isaf (nr) Dolfach
- Bwlch-y-garreg (nr) Cwmbelan
- Cwmbelan Turn (before) Llanidloes
- Llanidloes High School (o/s) Llanidloes
- St Matthew`s Church (opp) Llanelwedd
- Sunny Haven Park (o/s) Crossway
- Llwyn-dderw (nr) Howey
- Howey Village (before) Howey
- Pentrosfa (opp) Llandrindod Wells
- Ridgebourne (opp) Llandrindod Wells
- Grosvenor Stores (o/s) Llandrindod Wells
- Auto Palace (opp) Llandrindod Wells
- Llandrindod Wells Interchange Stand 2 Llandrindod Wells
- Tremont Road (opp Celf Centre) Llandrindod Wells
- Swiss Villa (o/s) Llandrindod Wells
- Penybryn (after) Crossgates
- Builders Arms (after) Crossgates
- Tan-y-Fron (nr) Fron
- Crossways (o/s) Llanddewi Ystradenny
- St David`s Church (after) Llanddewi Ystradenny
- Ithon View (nr) Llanddewi Ystradenny
- Vicarage (opp) Llanbister
- Llananno Bridge (before) Llananno
- Maes-yr-helem Bridge (before) Llanbadarn Fynydd
- New Inn (after) Llanbadarn Fynydd
- Dolaucwmffrwd Turn (after) Llanbadarn Fynydd
- Llaithddu Turn (after) Dolfor
- Camnant (nr) Dolfor
- Dolfor Church (before) Dolfor
- Dolfor Bus Stop (at) Dolfor
- Garrig Layby (W-Bound) Dolfor
- Plantation Lane (after) Garth Owen
- Ladywell House (before) Newtown
- Park Street Newtown
- Newtown Bus Station Stand 2 Newtown
- Hill View Close (before) Trehafren
- Flying Shuttle (nr) Trehafren
- Newtown College (opp) Maesyrhandir
- Penstrowed Bridge (after) Newtown
- Post Office (nr) Llandinam
- Dolwen Turn (after) Dolwen
- Millennium Garden (nr) Llanidloes
Towns & areas on this route
Merthyr TydfilNewtownBreconLlandrindod WellsRhayaderTrehafrenLlanidloesBuilth WellsCrossgatesDolforNewbridge on WyeLlanbadarn Fynydd
Frequently asked questions
What time is the first T4 bus?
The first T4 departure on weekdays leaves at 06:00 (check the full timetable below for your stop, as times vary along the route — weekend times can differ).
What time is the last T4 bus?
The last T4 on weekdays leaves its first stop at 20:10. Always check the timetable for your specific stop — later stops are reached after this time.
How much does the T4 bus cost?
The England fare cap doesn't apply in Wales — Celtic Travel sets the fares on the T4. Check their website or the Traveline Cymru fare finder for current prices.
Who runs the T4 bus?
The T4 is operated by Celtic Travel.
Timetable data from Celtic Travel via the Traveline National Dataset. Check before you travel — services can change at short notice.