121 Ystradgynlais circular via Gurnos, Glanrhyd
Operated by South Wales Transport. First bus 08:37, last bus 16:50. 9 journeys on Mondays, Wednesdays and Fridays. Fares: set by the operator — more.
Wanted a different 121? 14 other bus routes are numbered 121 elsewhere in the UK — see every 121 bus timetable by area.
| Stop | 08:37 | 09:10 | 10:10 | 11:10 | 12:40 | 13:40 | 14:40 | 16:19 | 16:50 |
|---|---|---|---|---|---|---|---|---|---|
| Ystradgynlais Bus Station Stand 2 | · | 09:10 | 10:10 | 11:10 | 12:40 | 13:40 | 14:40 | · | 16:50 |
| Gurnos Primary School (nr) | · | · | 10:16 | · | 12:46 | · | 14:46 | · | 16:56 |
| Glanrhyd Hospital (o/s) | · | 09:14 | · | 11:14 | · | 13:44 | · | · | · |
| Tesco Ystradgynlais (at) | · | 09:17 | 10:20 | 11:17 | 12:50 | 13:47 | 14:50 | · | 17:00 |
| New Swan Inn (o/s) | · | 09:19 | 10:22 | 11:19 | 12:52 | 13:49 | 14:52 | · | 17:02 |
| Farteg (nr) | · | 09:21 | 10:24 | 11:21 | 12:54 | 13:51 | 14:54 | · | 17:04 |
| Ystalyfera Asda (o/s) | · | 09:24 | 10:27 | 11:24 | 12:57 | 13:54 | 14:57 | · | 17:07 |
| Hodgson's Road (o/s 35) | · | 09:28 | 10:31 | 11:28 | 13:01 | 13:58 | 15:01 | · | 17:11 |
| Graig Newydd Estate (after) | 08:37 | 09:29 | 10:32 | 11:29 | 13:02 | 13:59 | · | 16:19 | 17:12 |
| Pantyffynon Terrace (opp) | 08:39 | 09:31 | 10:34 | 11:31 | 13:04 | 14:01 | · | 16:21 | 17:14 |
| Allt-y-Grug (at) | 08:45 | 09:37 | 10:40 | 11:37 | 13:10 | 14:07 | · | 16:27 | 17:20 |
| New Swan Inn (before) | 08:50 | 09:42 | 10:45 | 11:42 | 13:15 | 14:12 | · | 16:32 | 17:25 |
| Gurnos Primary School (nr) | · | 09:46 | · | 11:46 | · | 14:16 | · | · | · |
| Tesco Ystradgynlais (at) | 08:52 | 09:44 | 10:47 | 11:44 | 13:17 | 14:14 | · | 16:34 | 17:27 |
| Glanrhyd Hospital (opp) | 08:55 | · | 10:50 | · | 13:20 | · | · | 16:37 | 17:30 |
| Ystradgynlais Bus Station Stand 2 | 08:59 | 09:53 | 10:54 | 11:53 | 13:24 | 14:23 | · | 16:41 | 17:34 |
Each column is one journey, headed by the time it sets off. 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.
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 South Wales Transport before you travel. Everything above is an ordinary week.
Not published yet: Christmas Day and New Year's Day. Operators often publish festive timetables only a few weeks ahead, so check again nearer the date.
- Monday, 28 December 2026 towards Ystradgynlais: 9 journeys, first 08:37
- Wednesday, 30 December 2026 towards Ystradgynlais: 9 journeys, first 08:37
Route map
All stops on route 121
121 towards Ystradgynlais
All 38 stops
- Ystradgynlais Bus Station Stand 2 Ystradgynlais
- Heol Eglwys (after) Ystradgynlais
- Gough Arms (nr) Ystradgynlais
- Gorof Road (opp 73) Gurnos
- Gurnos Primary School (nr) Gurnos
- Gurnos Square (at) Gurnos
- Claphon Crossing (nr) Glanrhyd
- Glanrhyd Hospital (o/s) Glanrhyd
- Post Office (nr) Glanrhyd
- Lyte Ladders (nr) Glanrhyd
- Tesco Ystradgynlais (at) Ystradgynlais
- Capital Buildings (before) Glanrhyd
- New Swan Inn (o/s) Ystalyfera
- Farteg (nr) Ystalyfera
- Varteg Post Office (opp Post Box) Ystalyfera
- Ystalyfera Asda (o/s) Ystalyfera
- Hodgson's Road (o/s 35) Pantyffynnon
- Graig Newydd Estate (after) Pantyffynnon
- Glan-yr-Avon (nr) Pantyffynnon
- Pantyffynon Terrace (opp) Pantyffynnon
- Clees Lane (before) Pantteg
- Cynfyng Road (after 4) Ystalyfera
- Cynfyng Road (nr 20) Ystalyfera
- Pantteg Legion (before) Ystalyfera
- Allt-y-Grug (at) Ystalyfera
- Pantteg Legion (before) Ystalyfera
- New Swan Inn (before) Ystalyfera
- Capital Shops (o/s) Glanrhyd
- Gurnos Square (before) Gurnos
- Gurnos Primary School (nr) Gurnos
- Gorof Road (junct) Gurnos
- Tesco Ystradgynlais (at) Ystradgynlais
- Wind Road (opp 14) Glanrhyd
- Post Office (nr) Glanrhyd
- Glanrhyd Hospital (opp) Glanrhyd
- Claphon Crossing (nr) Glanrhyd
- Gough Arms (nr) Ystradgynlais
- Ystradgynlais Bus Station Stand 2 Ystradgynlais
Towns & areas on this route
Frequently asked questions
What time is the first 121 bus?
The first 121 departure on Mondays, Wednesdays and Fridays leaves at 08:37 (check the full timetable below for your stop, as times vary along the route — weekend times can differ).
What time is the last 121 bus?
The last 121 on Mondays, Wednesdays and Fridays leaves its first stop at 16:50. Always check the timetable for your specific stop — later stops are reached after this time.
How much does the 121 bus cost?
The England fare cap doesn't apply in Wales — South Wales Transport sets the fares on the 121. Check their website or the Traveline Cymru fare finder for current prices.
Who runs the 121 bus?
The 121 is operated by South Wales Transport.
Timetable data from South Wales Transport via the DfT Bus Open Data Service (Wales feed). Check before you travel — services can change at short notice.