| Planned | Expected | |
|---|---|---|
| Bedford | 09:18 | On time |
| Flitwick | 09:29 | On time |
| Harlington | 09:33 | On time |
| Leagrave | 09:38 | On time |
| Luton | 09:43 | On time |
| Luton Airport Parkway | 09:46 | On time |
| Harpenden | 09:52 | 09:54 |
| St Albans | 09:57 | 10:00 |
| West Hampstead Thameslink | 10:09 | 10:13 |
| London St Pancras (Intl) | 10:20 | On time |
| Farringdon | 10:24 | On time |
| City Thameslink | 10:26 | On time |
| London Blackfriars | 10:28 | On time |
| London Bridge | 10:34 | On time |
| East Croydon | 10:48 | On time |
| Gatwick Airport | 11:04 | On time |
| Three Bridges | 11:09 | On time |
| Balcombe | 11:16 | On time |
| Haywards Heath | 11:21 | On time |
| Wivelsfield | 11:26 | On time |
| Burgess Hill | 11:28 | On time |
| Hassocks | 11:32 | On time |
| Preston Park | 11:38 | On time |
| Brighton | 11:43 | On time |