| Location | Planned | Expected |
|---|---|---|
| Bedford | 10:46 | On time |
| Flitwick | 10:58 | 11:02 |
| Harlington | 11:02 | 11:06 |
| Leagrave | 11:08 | 11:11 |
| Luton | 11:13 | 11:16 |
| Luton Airport Parkway | 11:16 | 11:19 |
| Harpenden | 11:21 | 11:24 |
| St Albans | 11:27 | 11:30 |
| West Hampstead Thameslink | 11:39 | 11:42 |
| London St Pancras (Intl) | 11:49 | On time |
| Farringdon | 11:54 | On time |
| City Thameslink | 11:56 | On time |
| London Blackfriars | 11:58 | On time |
| London Bridge | 12:04 | On time |
| East Croydon | 12:18 | |
| Gatwick Airport | 12:34 | |
| Three Bridges | 12:39 | |
| Balcombe | 12:46 | |
| Haywards Heath | 12:51 | |
| Wivelsfield | 12:56 | |
| Burgess Hill | 12:58 | |
| Hassocks | 13:02 | |
| Preston Park | 13:08 | |
| Brighton | 13:13 |