| Planned | Expected | |
|---|---|---|
| Bedford | 13:18 | On time |
| Flitwick | 13:29 | On time |
| Harlington | 13:33 | On time |
| Leagrave | 13:38 | On time |
| Luton | 13:43 | On time |
| Luton Airport Parkway | 13:46 | On time |
| Harpenden | 13:52 | On time |
| St Albans | 13:57 | 13:59 |
| West Hampstead Thameslink | 14:09 | On time |
| London St Pancras (Intl) | 14:19 | On time |
| Farringdon | 14:24 | On time |
| City Thameslink | 14:26 | On time |
| London Blackfriars | 14:28 | On time |
| London Bridge | 14:34 | On time |
| East Croydon | 14:48 | On time |
| Gatwick Airport | 15:04 | On time |
| Three Bridges | 15:09 | On time |
| Balcombe | 15:16 | On time |
| Haywards Heath | 15:21 | On time |
| Wivelsfield | 15:26 | On time |
| Burgess Hill | 15:28 | On time |
| Hassocks | 15:32 | On time |
| Preston Park | 15:38 | On time |
| Brighton | 15:43 | On time |