| Planned | Expected | |
|---|---|---|
| London Euston | 18:09 | On time |
| Harrow & Wealdstone | 18:21 | 18:24 |
| Bushey | 18:27 | 18:29 |
| Watford Junction | 18:30 | On time |
| Kings Langley | 18:35 | On time |
| Apsley | 18:39 | 18:43 |
| Hemel Hempstead | 18:42 | 18:46 |
| Berkhamsted | 18:47 | 18:50 |
| Tring | 18:52 | 18:55 |
| Cheddington | 18:57 | 19:00 |
| Leighton Buzzard | 19:02 | 19:05 |
| Bletchley | 19:09 | 19:14 |
| Milton Keynes Central | 19:15 | 19:19 |