| Location | Planned | Expected |
|---|---|---|
| London Euston | ||
| Harrow & Wealdstone | 23:58 | 23:54 |
| Watford Junction | 00:06 | 00:03 |
| Hemel Hempstead | 00:14 | On time |
| Berkhamsted | 00:19 | On time |
| Tring | 00:24 | On time |
| Leighton Buzzard | 00:34 | |
| Bletchley | 00:41 | |
| Milton Keynes Central | 00:50 | |
| Wolverton | 00:54 | |
| Northampton | 01:08 |