| Planned | Expected | |
|---|---|---|
| Bedford | 07:18 | On time |
| Flitwick | 07:29 | On time |
| Harlington | 07:33 | On time |
| Leagrave | 07:38 | On time |
| Luton | 07:43 | On time |
| Luton Airport Parkway | 07:46 | On time |
| Harpenden | 07:52 | On time |
| St Albans | 07:57 | On time |
| West Hampstead Thameslink | 08:09 | 08:11 |
| London St Pancras (Intl) | 08:20 | On time |
| Farringdon | 08:24 | 08:26 |
| City Thameslink | 08:26 | 08:29 |
| London Blackfriars | 08:29 | On time |
| London Bridge | 08:35 | On time |
| East Croydon | 08:49 | On time |
| Gatwick Airport | 09:05 | 09:08 |
| Three Bridges | 09:10 | 09:14 |
| Balcombe | 09:16 | No report |
| Haywards Heath | 09:22 | 09:27 |
| Wivelsfield | 09:26 | 09:31 |
| Burgess Hill | 09:28 | 09:32 |
| Hassocks | 09:32 | 09:36 |
| Preston Park | 09:38 | 09:43 |
| Brighton | 09:43 | 09:47 |