| Planned | Expected | |
|---|---|---|
| Bedford | 12:48 | On time |
| Flitwick | 12:59 | On time |
| Harlington | 13:03 | On time |
| Leagrave | 13:08 | On time |
| Luton | 13:13 | On time |
| Luton Airport Parkway | 13:16 | On time |
| Harpenden | 13:22 | On time |
| St Albans | 13:27 | 13:29 |
| West Hampstead Thameslink | 13:39 | 13:45 |
| London St Pancras (Intl) | 13:50 | 13:53 |
| Farringdon | 13:54 | 13:58 |
| City Thameslink | 13:56 | 14:01 |
| London Blackfriars | 13:59 | 14:02 |
| London Bridge | 14:05 | 14:08 |
| East Croydon | 14:19 | 14:26 |
| Gatwick Airport | 14:35 | 14:41 |
| Three Bridges | 14:40 | 14:47 |
| Balcombe | 14:46 | 14:53 |
| Haywards Heath | 14:52 | 14:58 |
| Wivelsfield | 14:56 | 15:01 |
| Burgess Hill | 14:58 | 15:04 |
| Hassocks | 15:02 | 15:08 |
| Preston Park | 15:08 | 15:16 |
| Brighton | 15:13 | 15:20 |