| Planned | Expected | |
|---|---|---|
| London Marylebone | ||
| Harrow-on-the-Hill | 18:53 | On time |
| Chorleywood | 19:11 | On time |
| Chalfont & Latimer | 19:15 | On time |
| Amersham | 19:19 | 19:21 |
| Great Missenden | 19:27 | On time |
| Wendover | 19:33 | On time |
| Stoke Mandeville | 19:38 | On time |
| Aylesbury | 19:43 | On time |