| Planned | Expected | |
|---|---|---|
| Milton Keynes Central | ||
| Bletchley | 21:31 | 21:28 |
| Leighton Buzzard | 21:38 | On time |
| Cheddington | 21:43 | On time |
| Tring | 21:50 | On time |
| Berkhamsted | 21:55 | On time |
| Hemel Hempstead | 21:59 | On time |
| Apsley | 22:03 | On time |
| Kings Langley | 22:06 | On time |
| Watford Junction | 22:11 | On time |
| Bushey | 22:14 | 22:16 |
| Harrow & Wealdstone | 22:19 | 22:22 |
| London Euston | 22:37 |