| Location | Planned | Expected |
|---|---|---|
| London Marylebone | 08:57 | On time |
| Harrow-on-the-Hill | 09:09 | On time |
| Rickmansworth | 09:19 | No report |
| Chorleywood | 09:24 | No report |
| Chalfont & Latimer | 09:28 | No report |
| Amersham | 09:33 | On time |
| Great Missenden | 09:40 | On time |
| Wendover | 09:46 | 09:43 |
| Stoke Mandeville | 09:50 | On time |
| Aylesbury | 09:55 | |
| Aylesbury Vale Parkway | 10:03 |