| Location | Planned | Expected |
|---|---|---|
| London Marylebone | 19:56 | On time |
| Harrow-on-the-Hill | 20:08 | On time |
| Rickmansworth | 20:18 | |
| Chorleywood | 20:23 | |
| Chalfont & Latimer | 20:27 | |
| Amersham | 20:31 | |
| Great Missenden | 20:39 | |
| Wendover | 20:45 | |
| Stoke Mandeville | 20:49 | |
| Aylesbury | 20:54 | |
| Aylesbury Vale Parkway | 21:02 |