| Location | Planned | Expected |
|---|---|---|
| London Kings Cross | 23:06 | On time |
| Finsbury Park | 23:12 | On time |
| Alexandra Palace | 23:17 | On time |
| Potters Bar | 23:26 | On time |
| Hatfield | 23:32 | On time |
| Welwyn Garden City | 23:41 | On time |
| Welwyn North | 23:44 | On time |
| Knebworth | 23:48 | On time |
| Stevenage | 23:53 | On time |