| Planned | Expected | |
|---|---|---|
| London Marylebone | 20:06 | On time |
| Gerrards Cross | 20:26 | On time |
| Beaconsfield | 20:32 | On time |
| High Wycombe | 20:39 | On time |
| Saunderton | 20:46 | On time |
| Princes Risborough | 20:52 | On time |
| Bicester Village | 21:10 | On time |
| Oxford Parkway | 21:20 | On time |
| Oxford | 21:28 | On time |