| Location | Planned | Expected |
|---|---|---|
| London Kings Cross | 15:36 | 15:42 |
| Finsbury Park | 15:42 | 15:47 |
| Alexandra Palace | 15:47 | 15:51 |
| Potters Bar | 15:55 | 15:59 |
| Hatfield | 16:01 | 16:05 |
| Welwyn Garden City | 16:06 | 16:09 |
| Welwyn North | 16:12 | On time |
| Knebworth | 16:16 | On time |
| Stevenage | 16:20 | On time |
| Hitchin | 16:25 | 16:27 |
| Letchworth Garden City | 16:31 | On time |
| Baldock | 16:34 | On time |
| Ashwell & Morden | 16:39 | On time |
| Royston | 16:44 | On time |
| Meldreth | 16:48 | On time |
| Shepreth | 16:52 | On time |
| Foxton | 16:54 | On time |
| Cambridge | 17:07 | 17:05 |