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City Centre - Birchgrove - Rhiwbina - Pantmawr - Whitchurch - City Centre | 21 anti-clockwise | 23 clockwise
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14th Aug onwards
Face coverings are mandatory on buses in Wales. Please wear yours before you board and for the entire journey. Travel is currently limited to essential travel only.
Pantbach Road closure
22nd Feb - 21st Mar
🚧 Pantbach Road closure, in both directions, due to gas works taking place, between junctions with Ty Gwyn Road / Ty'n-y-Parc Road and Heol-Y-Deri 📅 First bus Monday 22 February to last bus Sunday 21 March 🚌 Services 21 & 23 will divert via Ty Wern Road, Caerphilly Road and Beulah Road, in both directions 🚏 Service 21 Ty'n-Y-Cae Grove bus stop on Pantbach Road will not be served. Please use stops at Kyle Avenue (Pantbach Road) or Rhiwbina shops (Heol-Y-Deri) instead 🚏 Service 23 Porthamal Gardens bus stop on Pantbach Road will not be served. Please use stops at Rhiwbina shops (Heol-Y-Deri) or Homelands Road (Pantbach Road) We apologise for any inconvenience caused to your journey due to circumstances beyond our control
Route map
| 21 | 23 | 21 | 23 | 21 | 23 | 21 | 23 | 21 | 23 | 21 | 23 | 21 | 23 | 21 | 23 | 21 | 23 | 21 | 23 | 21 | 23 | 21 | 23 | 21 | 23 | 21 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Havelock Street | 06:26 | - | - | 10:01 | 10:31 | 11:01 | 11:31 | 12:01 | 12:31 | 13:01 | 13:31 | 14:01 | 14:31 | 15:01 | 15:31 | 16:01 | 16:31 | 17:01 | 17:31 | 18:01 | 18:31 | 19:01 | 19:31 | 20:01 | 20:31 | 21:01 | 21:31 |
| Corbett Road | 06:34 | - | - | 10:10 | 10:40 | 11:10 | 11:40 | 12:10 | 12:40 | 13:10 | 13:40 | 14:10 | 14:40 | 15:10 | 15:40 | 16:10 | 16:40 | 17:10 | 17:40 | 18:10 | 18:40 | 19:10 | 19:40 | 20:10 | 20:40 | 21:10 | 21:40 |
| Parkfield Place | 06:37 | - | - | 10:14 | 10:44 | 11:14 | 11:44 | 12:14 | 12:44 | 13:14 | 13:44 | 14:14 | 14:44 | 15:14 | 15:44 | 16:14 | 16:44 | 17:14 | 17:44 | 18:14 | 18:44 | 19:14 | 19:44 | 20:14 | 20:44 | 21:14 | 21:44 |
| Three Elms | - | 09:19 | - | 10:19 | - | 11:19 | - | 12:19 | - | 13:19 | - | 14:19 | - | 15:19 | - | 16:19 | - | 17:19 | - | 18:19 | - | 19:19 | - | 20:19 | - | 21:19 | - |
| Penlline Court | - | 09:23 | - | 10:22 | - | 11:22 | - | 12:22 | - | 13:22 | - | 14:22 | - | 15:22 | - | 16:22 | - | 17:22 | - | 18:22 | - | 19:22 | - | 20:22 | - | 21:22 | - |
| Caer Wenallt South | - | 09:30 | - | 10:29 | - | 11:29 | - | 12:29 | - | 13:29 | - | 14:29 | - | 15:29 | - | 16:29 | - | 17:29 | - | 18:29 | - | 19:29 | - | 20:29 | - | 21:29 | - |
| The Deri | - | 09:32 | - | 10:31 | - | 11:31 | - | 12:31 | - | 13:31 | - | 14:31 | - | 15:31 | - | 16:31 | - | 17:31 | - | 18:31 | - | 19:31 | - | 20:31 | - | 21:31 | - |
| Porthamal Gardens | - | 09:38 | - | 10:37 | - | 11:37 | - | 12:37 | - | 13:37 | - | 14:37 | - | 15:37 | - | 16:37 | - | 17:37 | - | 18:37 | - | 19:37 | - | 20:37 | - | 21:37 | - |
| Homelands Rd | - | 09:39 | - | 10:38 | - | 11:38 | - | 12:38 | - | 13:38 | - | 14:38 | - | 15:38 | - | 16:38 | - | 17:38 | - | 18:38 | - | 19:38 | - | 20:38 | - | 21:38 | - |
| Birchgrove | - | 09:44 | - | 10:43 | - | 11:43 | - | 12:43 | - | 13:43 | - | 14:43 | - | 15:43 | - | 16:43 | - | 17:43 | - | 18:43 | - | 19:43 | - | 20:43 | - | 21:43 | - |
| Birchgrove | 06:39 | - | 09:46 | - | 10:48 | - | 11:48 | - | 12:48 | - | 13:48 | - | 14:48 | - | 15:48 | - | 16:48 | - | 17:48 | - | 18:48 | - | 19:48 | - | 20:48 | - | 21:48 |
| Rhiwbina Stn | 06:43 | - | 09:50 | - | 10:52 | - | 11:52 | - | 12:52 | - | 13:52 | - | 14:52 | - | 15:52 | - | 16:52 | - | 17:52 | - | 18:52 | - | 19:52 | - | 20:52 | - | 21:52 |
| The Deri | 06:47 | - | 09:57 | - | 10:59 | - | 11:59 | - | 12:59 | - | 13:59 | - | 14:59 | - | 15:59 | - | 16:59 | - | 17:59 | - | 18:59 | - | 19:59 | - | 20:59 | - | 21:59 |
| Caer Wenallt South | 06:50 | - | 10:00 | - | 11:02 | - | 12:02 | - | 13:02 | - | 14:02 | - | 15:02 | - | 16:02 | - | 17:02 | - | 18:02 | - | 19:02 | - | 20:02 | - | 21:02 | - | 22:02 |
| Whitchurch Library | 06:54 | - | 10:04 | - | 11:06 | - | 12:06 | - | 13:06 | - | 14:06 | - | 15:06 | - | 16:06 | - | 17:06 | - | 18:06 | - | 19:06 | - | 20:06 | - | 21:06 | - | 22:06 |
| Three Elms | 06:56 | - | 10:07 | - | 11:09 | - | 12:09 | - | 13:09 | - | 14:09 | - | 15:09 | - | 16:09 | - | 17:09 | - | 18:09 | - | 19:09 | - | 20:09 | - | 21:09 | - | 22:09 |
| Cathays High School | - | 09:48 | 10:14 | 10:46 | 11:16 | 11:46 | 12:16 | 12:46 | 13:16 | 13:46 | 14:16 | 14:46 | 15:16 | 15:46 | 16:16 | 16:46 | 17:16 | 17:46 | 18:16 | 18:46 | 19:16 | 19:46 | 20:16 | 20:46 | 21:16 | 21:46 | 22:16 |
| Aberporth Road | 06:59 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Interchange | 07:05 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Cathays Library | 07:08 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Corbett Road | 07:13 | 09:51 | 10:17 | 10:49 | 11:19 | 11:49 | 12:19 | 12:49 | 13:19 | 13:49 | 14:19 | 14:49 | 15:19 | 15:49 | 16:19 | 16:49 | 17:19 | 17:49 | 18:19 | 18:49 | 19:19 | 19:49 | 20:19 | 20:49 | 21:19 | 21:49 | 22:19 |
| Havelock Street | 07:20 | 09:55 | 10:24 | 10:56 | 11:26 | 11:56 | 12:26 | 12:56 | 13:26 | 13:56 | 14:26 | 14:56 | 15:26 | 15:56 | 16:26 | 16:56 | 17:26 | 17:56 | 18:26 | 18:56 | 19:26 | 19:56 | 20:26 | 20:56 | 21:26 | 21:56 | 22:26 |
Our buses should leave main stops no later than 5 minutes past the scheduled time, and no earlier than 1 minute before. Drivers use main stops to keep running on time, but stops in between these are only estimates and drivers are not asked to wait at these stops. We do our best to run our buses on time, but please allow plenty of time to catch the bus and any connections as not everything is within our control.