| Location | Planned | Expected |
|---|---|---|
| Aylesbury Vale Parkway | 12:13 | On time |
| Aylesbury | 12:18 | On time |
| Stoke Mandeville | 12:23 | On time |
| Wendover | 12:27 | On time |
| Great Missenden | 12:33 | On time |
| Amersham | 12:40 | On time |
| Chalfont & Latimer | 12:45 | On time |
| Chorleywood | 12:48 | On time |
| Rickmansworth | 12:53 | On time |
| Harrow-on-the-Hill | 13:04 | No report |
| London Marylebone | 13:20 | On time |