Operator: Thameslink
Previous Calling Points:
| 03:15 | Bedford | Unknown |
| 03:26 | Flitwick | Unknown |
| 03:15 | Bedford | Unknown |
| 03:26 | Flitwick | Unknown |
| 01:40 | Three Bridges | On time | |
| 01:45 | Gatwick Airport | On time | |
| 01:48 | Horley | On time | |
| 01:54 | Redhill | Delayed | actual 01:57 |
| 02:03 | Purley | Delayed | actual 02:06 |
| 02:10 | East Croydon | On time | |
| 02:36 | London Blackfriars | Delayed | actual 02:38 |
| 02:44 | London St Pancras (Intl) | Delayed | actual 02:46 |
| 02:48 | Kentish Town | Delayed | actual 02:51 |
| 02:52 | West Hampstead Thameslink | Delayed | actual 02:56 |
| 02:56 | Cricklewood | Delayed | actual 02:58 |
| 02:58 | Brent Cross West | Delayed | actual 03:01 |
| 03:00 | Hendon | Unknown | |
| 03:03 | Mill Hill Broadway | Unknown | |
| 03:07 | Elstree & Borehamwood | Unknown | |
| 03:11 | Radlett | Unknown | |
| 03:18 | St Albans | Unknown | |
| 03:24 | Harpenden | Unknown | |
| 03:30 | Luton Airport Parkway | Unknown | |
| 03:34 | Luton | Unknown | |
| 03:38 | Leagrave | Unknown |
| 03:43 | Bedford | Unknown |
| 03:54 | Flitwick | Unknown |
| 04:13 | Bedford | Unknown |
| 04:24 | Flitwick | Unknown |
| 02:40 | Three Bridges | Unknown |
| 02:45 | Gatwick Airport | Unknown |
| 02:48 | Horley | Unknown |
| 03:03 | Purley | Unknown |
| 03:10 | East Croydon | Unknown |
| 03:36 | London Blackfriars | Unknown |
| 03:44 | London St Pancras (Intl) | Unknown |
| 03:48 | Kentish Town | Unknown |
| 03:52 | West Hampstead Thameslink | Unknown |
| 03:56 | Cricklewood | Unknown |
| 03:58 | Brent Cross West | Unknown |
| 04:00 | Hendon | Unknown |
| 04:03 | Mill Hill Broadway | Unknown |
| 04:07 | Elstree & Borehamwood | Unknown |
| 04:11 | Radlett | Unknown |
| 04:18 | St Albans | Unknown |
| 04:24 | Harpenden | Unknown |
| 04:30 | Luton Airport Parkway | Unknown |
| 04:34 | Luton | Unknown |
| 04:38 | Leagrave | Unknown |
| 04:43 | Bedford | Unknown |
| 04:54 | Flitwick | Unknown |