| Planned | Expected | |
|---|---|---|
| Reading | ||
| Twyford | 23:24 | 23:29 |
| Maidenhead | 23:31 | 23:36 |
| Taplow | 23:34 | 23:39 |
| Burnham | 23:37 | 23:42 |
| Slough | 23:41 | 23:47 |
| Langley | 23:45 | 23:51 |
| Iver | 23:47 | 23:53 |
| West Drayton | 23:50 | 23:57 |
| Hayes & Harlington | 23:55 | 00:01 |
| Southall | 23:59 | 00:04 |
| Ealing Broadway | 00:03 | 00:10 |
| London Paddington | 00:13 | 00:19 |