| Location | Planned | Expected |
|---|---|---|
| Aylesbury Vale Parkway | 12:13 | |
| Aylesbury | 12:18 | |
| Stoke Mandeville | 12:23 | |
| Wendover | 12:27 | |
| Great Missenden | 12:33 | |
| Amersham | 12:40 | |
| Chalfont & Latimer | 12:45 | |
| Chorleywood | 12:48 | |
| Rickmansworth | 12:53 | |
| Harrow-on-the-Hill | 13:04 | |
| London Marylebone | 13:20 |