| Planned | Expected | |
|---|---|---|
| London Euston | 21:24 | On time |
| Harrow & Wealdstone | 21:36 | 21:42 |
| Watford Junction | 21:44 | 21:48 |
| Hemel Hempstead | 21:51 | 21:54 |
| Berkhamsted | 21:57 | 21:59 |
| Tring | 22:03 | On time |
| Leighton Buzzard | 22:13 | On time |
| Bletchley | 22:20 | On time |
| Milton Keynes Central | 22:27 |