| Location | Planned | Expected |
|---|---|---|
| London Marylebone | 17:41 | On time |
| Harrow-on-the-Hill | 17:54 | On time |
| Rickmansworth | 18:05 | On time |
| Chorleywood | 18:10 | On time |
| Chalfont & Latimer | 18:14 | On time |
| Amersham | 18:18 | No report |
| Great Missenden | 18:25 | On time |
| Wendover | 18:31 | On time |
| Stoke Mandeville | 18:36 | On time |
| Aylesbury | 18:41 | On time |