| Location | Planned | Expected |
|---|---|---|
| London Marylebone | 09:56 | On time |
| Harrow-on-the-Hill | 10:09 | On time |
| Rickmansworth | 10:19 | No report |
| Chorleywood | 10:24 | No report |
| Chalfont & Latimer | 10:28 | No report |
| Amersham | 10:33 | On time |
| Great Missenden | 10:40 | On time |
| Wendover | 10:46 | 10:42 |
| Stoke Mandeville | 10:50 | On time |
| Aylesbury | 10:55 | On time |
| Aylesbury Vale Parkway | 11:03 | 11:00 |