| Location | Planned | Expected |
|---|---|---|
| London Marylebone | 10:27 | On time |
| Harrow-on-the-Hill | 10:39 | On time |
| Rickmansworth | 10:49 | On time |
| Chorleywood | 10:54 | On time |
| Chalfont & Latimer | 10:58 | On time |
| Amersham | 11:03 | On time |
| Great Missenden | 11:10 | On time |
| Wendover | 11:16 | 11:12 |
| Stoke Mandeville | 11:21 | 11:18 |
| Aylesbury | 11:26 | On time |