| Planned | Expected | |
|---|---|---|
| Bedford | 12:48 | On time |
| Flitwick | 12:59 | On time |
| Harlington | 13:03 | On time |
| Leagrave | 13:08 | 13:10 |
| Luton | 13:13 | 13:14 |
| Luton Airport Parkway | 13:16 | 13:18 |
| Harpenden | 13:21 | 13:23 |
| St Albans | 13:27 | 13:29 |
| West Hampstead Thameslink | 13:39 | 13:41 |
| London St Pancras (Intl) | 13:49 | On time |
| Farringdon | 13:54 | On time |
| City Thameslink | 13:56 | On time |
| London Blackfriars | 13:58 | On time |
| London Bridge | 14:04 | On time |
| East Croydon | 14:18 | On time |
| Gatwick Airport | 14:34 | |
| Three Bridges | 14:39 | |
| Balcombe | 14:46 | |
| Haywards Heath | 14:51 | |
| Wivelsfield | 14:56 | |
| Burgess Hill | 14:58 | |
| Hassocks | 15:02 | |
| Preston Park | 15:08 | |
| Brighton | 15:13 |