| Location | Planned | Expected |
|---|---|---|
| Moorgate | ||
| Old Street | 23:44 | On time |
| Essex Road | 23:48 | On time |
| Highbury & Islington | 23:50 | On time |
| Drayton Park | 23:53 | On time |
| Finsbury Park | 23:56 | On time |
| Alexandra Palace | 00:15 | 00:10 |
| Bowes Park | 00:18 | On time |
| Palmers Green | 00:21 | On time |
| Winchmore Hill | 00:23 | On time |
| Grange Park | 00:25 | On time |
| Enfield Chase | 00:27 | On time |
| Gordon Hill | 00:29 | On time |
| Crews Hill | 00:32 | On time |
| Cuffley | 00:35 | On time |
| Bayford | 00:39 | On time |
| Hertford North | 00:43 | On time |
| Watton-at-Stone | 00:50 | On time |
| Stevenage | 00:57 | On time |
| Hitchin | 01:03 | On time |
| Letchworth Garden City | 01:08 | On time |