| Planned | Expected | |
|---|---|---|
| Bedford | 12:18 | On time |
| Flitwick | 12:29 | On time |
| Harlington | 12:33 | On time |
| Leagrave | 12:38 | On time |
| Luton | 12:43 | On time |
| Luton Airport Parkway | 12:46 | On time |
| Harpenden | 12:52 | On time |
| St Albans | 12:57 | On time |
| West Hampstead Thameslink | 13:09 | On time |
| London St Pancras (Intl) | 13:20 | On time |
| Farringdon | 13:24 | On time |
| City Thameslink | 13:26 | On time |
| London Blackfriars | 13:28 | On time |
| London Bridge | 13:34 | On time |
| East Croydon | 13:48 | On time |
| Gatwick Airport | 14:04 | On time |
| Three Bridges | 14:10 | On time |
| Balcombe | 14:17 | On time |
| Haywards Heath | 14:22 | |
| Wivelsfield | 14:26 | |
| Burgess Hill | 14:28 | |
| Hassocks | 14:32 | |
| Preston Park | 14:39 | |
| Brighton | 14:43 |