| Planned | Expected | |
|---|---|---|
| Maesteg | 16:13 | On time |
| Maesteg (Ewenny Road) | 16:16 | On time |
| Garth (Mid Glamorgan) | 16:19 | On time |
| Tondu | 16:28 | On time |
| Sarn | 16:31 | On time |
| Wildmill | 16:35 | 16:38 |
| Bridgend | 16:39 | On time |
| Pencoed | 16:44 | 16:46 |
| Llanharan | 16:48 | 16:52 |
| Pontyclun | 16:52 | 16:58 |
| Cardiff Central | 17:06 | 17:11 |
| Newport (South Wales) | 17:23 | 17:31 |
| Severn Tunnel Junction | 17:33 | 17:51 |
| Caldicot | 17:36 | 17:54 |
| Chepstow | 17:44 | 18:02 |
| Lydney | 17:53 | 18:12 |
| Gloucester | 18:13 | |
| Cheltenham Spa | 18:26 |