| Planned | Expected | |
|---|---|---|
| London Marylebone | ||
| Harrow-on-the-Hill | 18:23 | On time |
| Rickmansworth | 18:36 | On time |
| Chorleywood | 18:41 | On time |
| Chalfont & Latimer | 18:45 | On time |
| Amersham | 18:49 | On time |
| Great Missenden | 18:56 | On time |
| Wendover | 19:02 | On time |
| Stoke Mandeville | 19:07 | On time |
| Aylesbury | 19:12 | On time |