| Location | Planned | Expected |
|---|---|---|
| London Marylebone | 16:41 | On time |
| Harrow-on-the-Hill | 16:54 | 16:52 |
| Rickmansworth | 17:04 | No report |
| Chorleywood | 17:09 | |
| Chalfont & Latimer | 17:13 | No report |
| Amersham | 17:17 | No report |
| Great Missenden | 17:25 | On time |
| Wendover | 17:31 | 17:28 |
| Stoke Mandeville | 17:36 | 17:33 |
| Aylesbury | 17:40 | |
| Aylesbury Vale Parkway | 17:48 |