| Planned | Expected | |
|---|---|---|
| Bedford | 23:07 | On time |
| Flitwick | 23:18 | On time |
| Harlington | 23:22 | On time |
| Leagrave | 23:28 | On time |
| Luton | 23:32 | On time |
| Luton Airport Parkway | 23:35 | On time |
| Harpenden | 23:41 | On time |
| St Albans | 23:47 | On time |
| Radlett | 23:53 | On time |
| Elstree & Borehamwood | 23:56 | 23:58 |
| Mill Hill Broadway | 00:01 | On time |
| Hendon | 00:05 | On time |
| Brent Cross West | 00:07 | On time |
| Cricklewood | 00:10 | On time |
| West Hampstead Thameslink | 00:12 | On time |
| Kentish Town | 00:17 | On time |
| London St Pancras (Intl) | 00:23 | On time |
| Farringdon | 00:28 | On time |
| London Blackfriars | 00:31 | On time |
| East Croydon | 00:57 | 01:01 |
| Horley | 01:17 | On time |
| Gatwick Airport | 01:21 | On time |
| Three Bridges | 01:27 | On time |