| Planned | Expected | |
|---|---|---|
| Bedford | 07:48 | On time |
| Flitwick | 07:59 | On time |
| Harlington | 08:03 | On time |
| Leagrave | 08:08 | On time |
| Luton | 08:13 | On time |
| Luton Airport Parkway | 08:16 | 08:17 |
| Harpenden | 08:22 | 08:24 |
| St Albans | 08:27 | 08:31 |
| West Hampstead Thameslink | 08:39 | 08:44 |
| London St Pancras (Intl) | 08:50 | On time |
| Farringdon | 08:54 | On time |
| City Thameslink | 08:56 | 08:58 |
| London Blackfriars | 08:58 | On time |
| London Bridge | 09:04 | On time |
| East Croydon | 09:18 | On time |
| Gatwick Airport | 09:34 | On time |
| Three Bridges | 09:39 | On time |
| Balcombe | 09:46 | On time |
| Haywards Heath | 09:51 | On time |
| Wivelsfield | 09:56 | On time |
| Burgess Hill | 09:58 | On time |
| Hassocks | 10:02 | On time |
| Preston Park | 10:08 | On time |
| Brighton | 10:13 | On time |