| Location | Planned | Expected |
|---|---|---|
| London Marylebone | 19:32 | On time |
| Harrow-on-the-Hill | 19:45 | 19:47 |
| Rickmansworth | 19:55 | No report |
| Chorleywood | 20:00 | No report |
| Chalfont & Latimer | 20:04 | No report |
| Amersham | 20:09 | On time |
| Great Missenden | 20:16 | On time |
| Wendover | 20:22 | On time |
| Stoke Mandeville | 20:27 | On time |
| Aylesbury | 20:33 | 20:35 |