| Planned | Expected | |
|---|---|---|
| London Paddington | 00:34 | 00:41 |
| Ealing Broadway | 00:42 | 00:49 |
| Southall | 00:47 | 00:54 |
| Hayes & Harlington | 00:50 | 00:57 |
| West Drayton | 00:54 | 01:01 |
| Iver | 00:57 | 01:04 |
| Langley | 01:00 | 01:07 |
| Slough | 01:04 | 01:11 |
| Burnham | 01:08 | 01:18 |
| Taplow | 01:11 | 01:21 |
| Maidenhead | 01:14 | 01:24 |
| Twyford | 01:21 | 01:31 |
| Reading | 01:29 | 01:38 |