- 21
- 23
City Centre - Birchgrove - Rhiwbina - Pantmawr - Whitchurch - City Centre | 21 anti-clockwise | 23 clockwise
- 21
- 23
14th Aug onwards
Face coverings are mandatory on buses in Wales. Please wear yours for the entire journey.
21st Jun onwards
Changes to city centre stopping arrangements due to road closures for city centre social distancing from 12:00 on Sunday 21 June, until further notice. https://bit.ly/3hJHHfC
Birchgrove Road closure
23rd Nov - 6th Dec
🚧 Birchgrove Road will be closed, one-way in a south westerly direction, from Caerphilly Road to Pantbach Road, for pavement widening works outside Birchgrove Primary School 📅 08:00 Monday 23 November to 18:00 Sunday 6 December 🚌 Service 21 will divert towards Rhiwbina along Caerphilly Road and Ty-Wern Road 🚏 Bus stops along Pantbach Road from Birchgrove Road to Ty-Wern Road will not be served. Please use stops along Caerphilly Road instead 🚌 Service 64 will divert towards Whitchurch via Caerphilly Road and Gabalfa Interchange 🚏 The bus stops at Birchgrove (on Caerphilly Road) and Birchgrove Road will not be served. Please use stops at Rhydhelig Avenue or The Philog instead We apologise for any inconvenience caused to your journey
North Road closure
Today 20:00 - 25th Nov
🚧 North Road will be closed in both directions, between Crown Way and Corbett Road, for emergency tidal flow repair work 📅 20:00 Tuesday 24 November to 05:30 Wednesday 25 November 🚌 Services 21, 23 & 27 will divert in both directions via Corbett Road, Cathays Terrace, Whitchurch Road & Crown Way 🚏 The Blackweir & Maindy Stadium outbound bus stops will not be served, please use bus stops at Corbett Road (on North Road) or Parkfield Place instead 🚏 The Blackweir & Rosemount inbound bus stops will not be served, please use bus stops at Cathays High School or College Road (on North Road) instead We apologise for any inconvenience caused to your journey due to circumstances beyond our control
Route map
| 21 | 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 | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Greyfriars Rd | 06:28 | 06:57 | 07:17 | 07:32 | 07:47 | 08:02 | 08:13 | 08:26 | 08:43 | 09:02 | 09:17 | 09:32 | 09:47 | 10:02 | 10:17 | 10:32 | 10:47 | 11:02 | 11:17 | 11:32 | 11:47 | 12:02 | 12:17 | 12:32 | 12:47 | 13:02 | 13:17 | 13:32 | 13:47 | 14:02 | 14:17 | 14:32 | 14:47 | 15:02 | 15:17 | 15:32 | 15:47 | 16:02 | 16:17 | 16:32 | 16:47 | 17:02 | 17:17 | 17:32 | 17:47 | 18:22 | 19:09 | 19:39 | 20:09 | 20:39 | 21:09 | 21:39 | 22:09 |
| Corbett Road | 06:31 | 06:59 | 07:19 | 07:34 | 07:49 | 08:04 | 08:15 | 08:28 | 08:45 | 09:04 | 09:19 | 09:34 | 09:49 | 10:04 | 10:19 | 10:34 | 10:49 | 11:04 | 11:19 | 11:34 | 11:49 | 12:04 | 12:19 | 12:34 | 12:49 | 13:04 | 13:19 | 13:34 | 13:49 | 14:04 | 14:19 | 14:34 | 14:49 | 15:04 | 15:19 | 15:34 | 15:49 | 16:04 | 16:19 | 16:34 | 16:49 | 17:04 | 17:19 | 17:34 | 17:49 | 18:24 | 19:11 | 19:41 | 20:11 | 20:41 | 21:11 | 21:41 | 22:11 |
| Parkfield Place | 06:34 | 07:03 | 07:23 | 07:38 | 07:53 | 08:08 | 08:19 | 08:32 | 08:49 | 09:08 | 09:23 | 09:38 | 09:53 | 10:08 | 10:23 | 10:38 | 10:53 | 11:08 | 11:23 | 11:38 | 11:53 | 12:08 | 12:23 | 12:38 | 12:53 | 13:08 | 13:23 | 13:38 | 13:53 | 14:08 | 14:23 | 14:38 | 14:53 | 15:08 | 15:23 | 15:38 | 15:53 | 16:08 | 16:23 | 16:38 | 16:53 | 17:08 | 17:23 | 17:38 | 17:53 | 18:28 | 19:15 | 19:45 | 20:15 | 20:45 | 21:15 | 21:45 | 22:15 |
| Three Elms | - | - | 07:28 | - | 07:58 | - | 08:24 | - | 08:54 | - | 09:28 | - | 09:58 | - | 10:28 | - | 10:58 | - | 11:28 | - | 11:58 | - | 12:28 | - | 12:58 | - | 13:28 | - | 13:58 | - | 14:28 | - | 14:58 | - | 15:28 | - | 15:58 | - | 16:28 | - | 16:58 | - | 17:28 | - | 17:58 | - | 19:20 | - | 20:20 | - | 21:20 | - | 22:20 |
| Penlline Court | - | - | 07:31 | - | 08:01 | - | 08:27 | - | 08:57 | - | 09:31 | - | 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 | - | 19:23 | - | 20:23 | - | 21:23 | - | 22:23 |
| Caer Wenallt South | - | - | 07:38 | - | 08:08 | - | 08:34 | - | 09:04 | - | 09:38 | - | 10:08 | - | 10:38 | - | 11:08 | - | 11:38 | - | 12:08 | - | 12:38 | - | 13:08 | - | 13:38 | - | 14:08 | - | 14:38 | - | 15:08 | - | 15:38 | - | 16:08 | - | 16:38 | - | 17:08 | - | 17:38 | - | 18:08 | - | 19:30 | - | 20:30 | - | 21:30 | - | 22:30 |
| The Deri | - | - | 07:40 | - | 08:10 | - | 08:36 | - | 09:06 | - | 09:40 | - | 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 | - | 19:32 | - | 20:32 | - | 21:32 | - | 22:32 |
| Porthamal Gardens | - | - | 07:46 | - | 08:16 | - | 08:42 | - | 09:12 | - | 09:46 | - | 10:16 | - | 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 | - | 19:38 | - | 20:38 | - | 21:38 | - | 22:38 |
| Homelands Rd | - | - | 07:47 | - | 08:17 | - | 08:44 | - | 09:14 | - | 09:47 | - | 10:17 | - | 10:47 | - | 11:17 | - | 11:47 | - | 12:17 | - | 12:47 | - | 13:17 | - | 13:47 | - | 14:17 | - | 14:47 | - | 15:17 | - | 15:47 | - | 16:17 | - | 16:47 | - | 17:17 | - | 17:47 | - | 18:17 | - | 19:39 | - | 20:39 | - | 21:39 | - | 22:39 |
| Birchgrove | - | - | 07:52 | - | 08:22 | - | 08:51 | - | 09:21 | - | 09:52 | - | 10:22 | - | 10:52 | - | 11:22 | - | 11:52 | - | 12:22 | - | 12:52 | - | 13:22 | - | 13:52 | - | 14:22 | - | 14:52 | - | 15:22 | - | 15:52 | - | 16:22 | - | 16:52 | - | 17:22 | - | 17:52 | - | 18:22 | - | 19:44 | - | 20:44 | - | 21:44 | - | 22:44 |
| Birchgrove | 06:36 | 07:07 | - | 07:42 | - | 08:12 | - | 08:36 | - | 09:12 | - | 09:42 | - | 10:12 | - | 10:42 | - | 11:12 | - | 11:42 | - | 12:12 | - | 12:42 | - | 13:12 | - | 13:42 | - | 14:12 | - | 14:42 | - | 15:12 | - | 15:42 | - | 16:12 | - | 16:42 | - | 17:12 | - | 17:42 | - | 18:32 | - | 19:49 | - | 20:49 | - | 21:49 | - |
| Rhiwbina Stn | 06:40 | 07:11 | - | 07:46 | - | 08:16 | - | 08:40 | - | 09:16 | - | 09:46 | - | 10:16 | - | 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 | - | 18:36 | - | 19:53 | - | 20:53 | - | 21:53 | - |
| The Deri | 06:44 | 07:18 | - | 07:53 | - | 08:23 | - | 08:47 | - | 09:23 | - | 09:53 | - | 10:23 | - | 10:53 | - | 11:23 | - | 11:53 | - | 12:23 | - | 12:53 | - | 13:23 | - | 13:53 | - | 14:23 | - | 14:53 | - | 15:23 | - | 15:53 | - | 16:23 | - | 16:53 | - | 17:23 | - | 17:53 | - | 18:43 | - | 20:00 | - | 21:00 | - | 22:00 | - |
| Caer Wenallt South | 06:47 | 07:21 | - | 07:56 | - | 08:26 | - | 08:50 | - | 09:26 | - | 09:56 | - | 10:26 | - | 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 | - | 18:46 | - | 20:03 | - | 21:03 | - | 22:03 | - |
| Whitchurch Library | 06:51 | 07:25 | - | 08:00 | - | 08:30 | - | 08:54 | - | 09:30 | - | 10:00 | - | 10:30 | - | 11:00 | - | 11:30 | - | 12:00 | - | 12:30 | - | 13:00 | - | 13:30 | - | 14:00 | - | 14:30 | - | 15:00 | - | 15:30 | - | 16:00 | - | 16:30 | - | 17:00 | - | 17:30 | - | 18:00 | - | 18:50 | - | 20:07 | - | 21:07 | - | 22:07 | - |
| Three Elms | 06:53 | 07:28 | - | 08:03 | - | 08:33 | - | 08:59 | - | 09:33 | - | 10:03 | - | 10:33 | - | 11:03 | - | 11:33 | - | 12:03 | - | 12:33 | - | 13:03 | - | 13:33 | - | 14:03 | - | 14:33 | - | 15:03 | - | 15:33 | - | 16:03 | - | 16:33 | - | 17:03 | - | 17:33 | - | 18:03 | - | 18:53 | - | 20:10 | - | 21:10 | - | 22:10 | - |
| Crown Way | - | 07:35 | 07:55 | 08:10 | 08:25 | 08:40 | 08:55 | 09:08 | 09:25 | 09:40 | 09:55 | 10:10 | 10:25 | 10:40 | 10:55 | 11:10 | 11:25 | 11:40 | 11:55 | 12:10 | 12:25 | 12:40 | 12:55 | 13:10 | 13:25 | 13:40 | 13:55 | 14:10 | 14:25 | 14:40 | 14:55 | 15:10 | 15:25 | 15:40 | 15:55 | 16:10 | 16:25 | 16:40 | 16:55 | 17:10 | 17:25 | 17:40 | 17:55 | 18:10 | 18:25 | 19:00 | 19:47 | 20:17 | 20:47 | 21:17 | 21:47 | 22:17 | 22:47 |
| Corbett Road | - | 07:38 | 07:58 | 08:13 | 08:28 | 08:43 | 08:58 | 09:13 | 09:28 | 09:43 | 09:58 | 10:13 | 10:28 | 10:43 | 10:58 | 11:13 | 11:28 | 11:43 | 11:58 | 12:13 | 12:28 | 12:43 | 12:58 | 13:13 | 13:28 | 13:43 | 13:58 | 14:13 | 14:28 | 14:43 | 14:58 | 15:13 | 15:28 | 15:43 | 15:58 | 16:13 | 16:28 | 16:43 | 16:58 | 17:13 | 17:28 | 17:43 | 17:58 | 18:13 | 18:28 | 19:03 | 19:50 | 20:20 | 20:50 | 21:20 | 21:50 | 22:20 | 22:50 |
| Aberporth Road | 06:56 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Mynachdy Road | 07:01 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Cathays Library | 07:05 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Greyfriars Rd | 07:17 | 07:42 | 08:02 | 08:17 | 08:32 | 08:47 | 09:02 | 09:17 | 09:32 | 09:47 | 10:02 | 10:17 | 10:32 | 10:47 | 11:02 | 11:17 | 11:32 | 11:47 | 12:02 | 12:17 | 12:32 | 12:47 | 13:02 | 13:17 | 13:32 | 13:47 | 14:02 | 14:17 | 14:32 | 14:47 | 15:02 | 15:17 | 15:32 | 15:47 | 16:02 | 16:17 | 16:32 | 16:47 | 17:02 | 17:17 | 17:32 | 17:47 | 18:02 | 18:17 | 18:32 | 19:07 | 19:54 | 20:24 | 20:54 | 21:24 | 21:54 | 22:24 | 22:54 |
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.