| Planned | Expected | |
|---|---|---|
| Bedford | 01:15 | On time |
| Flitwick | 01:26 | On time |
| Harlington | 01:30 | On time |
| Leagrave | 01:36 | On time |
| Luton | 01:40 | On time |
| Luton Airport Parkway | 01:43 | On time |
| Harpenden | 01:49 | On time |
| St Albans | 01:55 | On time |
| Radlett | 02:01 | On time |
| Elstree & Borehamwood | 02:04 | On time |
| Mill Hill Broadway | 02:08 | On time |
| Hendon | 02:12 | On time |
| Brent Cross West | 02:14 | On time |
| Cricklewood | 02:16 | On time |
| West Hampstead Thameslink | 02:20 | On time |
| Kentish Town | 02:24 | On time |
| London St Pancras (Intl) | 02:30 | On time |
| London Blackfriars | 02:39 | On time |
| East Croydon | 03:06 | On time |
| Purley | 03:13 | On time |
| Horley | 03:25 | On time |
| Gatwick Airport | 03:30 | On time |
| Three Bridges | 03:36 | On time |