| Location | Planned | Expected |
|---|---|---|
| Bedford | 17:48 | 17:56 |
| Flitwick | 17:59 | 18:06 |
| Harlington | 18:03 | 18:11 |
| Leagrave | 18:08 | 18:16 |
| Luton | 18:13 | 18:20 |
| Luton Airport Parkway | 18:16 | 18:23 |
| Harpenden | 18:22 | 18:29 |
| St Albans | 18:27 | 18:35 |
| West Hampstead Thameslink | 18:39 | 18:46 |
| London St Pancras (Intl) | 18:50 | 18:53 |
| Farringdon | 18:54 | 18:57 |
| City Thameslink | 18:56 | 19:00 |
| London Blackfriars | 18:59 | 19:01 |
| London Bridge | 19:05 | On time |
| East Croydon | 19:18 | On time |
| Gatwick Airport | 19:34 | On time |
| Three Bridges | 19:39 | On time |
| Balcombe | 19:46 | On time |
| Haywards Heath | 19:51 | On time |
| Wivelsfield | 19:56 | On time |
| Burgess Hill | 19:58 | On time |
| Hassocks | 20:02 | On time |
| Preston Park | 20:09 | On time |
| Brighton | 20:14 | On time |