| Location | Planned | Expected |
|---|---|---|
| London Euston | 00:39 | |
| Harrow & Wealdstone | 00:51 | |
| Watford Junction | 01:00 | |
| Kings Langley | 01:04 | |
| Apsley | 01:08 | |
| Hemel Hempstead | 01:11 | |
| Berkhamsted | 01:16 | |
| Tring | 01:21 | |
| Cheddington | 01:26 | |
| Leighton Buzzard | 01:33 | |
| Bletchley | 01:39 | |
| Milton Keynes Central | 01:45 | |
| Wolverton | 01:49 | |
| Northampton | 02:03 |