| Harlington Oxford Avenue | 05:46:00 | |
| Harlington Corner | 05:48:00 | |
| Harlington Mondial Way | 05:49:00 | |
| Sipson Road | 05:50:00 | |
| Sipson Bath Road / Newport Road | 05:51:00 | |
| Harmondsworth Compass Centre | 05:52:00 | |
| Harmondsworth Pinglestone Close | 05:53:00 | |
| Longford Heathrow Park Thistle Hotel | 05:53:01 | |
| Longford Heathrow Close | 05:55:00 | |
| Longford Moor Bridge | 05:56:00 | |
| Colnbrook Galleymead Road | 05:58:00 | |
| Colnbrook Poyle Road Junction | 05:59:00 | |
| Colnbrook Coleridge Crescent West | 05:59:01 | |
| Colnbrook Star & Garter | 06:01:00 | |
| Colnbrook Ye Olde George Inn | 06:02:00 | |
| Colnbrook Red Lion | 06:02:01 | |
| Brands Hill Crown Close | 06:03:00 | |
| Brands Hill Sutton Lane | 06:05:00 | |
| Langley The Toby | 06:08:00 | |
| Langley Ditton Park Road | 06:08:01 | |
| Langley Cedar Way | 06:09:00 | |
| Langley Drake Avenue | 06:10:00 | |
| Langley Upton Court Road Junction | 06:10:01 | |
| Langley Kaywood Close | 06:11:00 | |
| Langley St Bernards Convent | 06:12:00 | |
| Langley Slough Grammar School | 06:13:00 | |
| Langley Uxbridge Road Sainsbury's | 06:14:00 | |
| Slough Sorting Office | 06:17:00 | |
| Slough Wellington Street Stop H | 06:19:00 | |