Northbound - Platform 1
| Harrow & Wealdstone | now |
| Harrow & Wealdstone | 9:53 mins |
| Harrow & Wealdstone | 27:53 mins |
Platform 1
| Watford Junction | 7:52 mins |
| Watford Junction | 19:33 mins |
| Harrow & Wealdstone | now |
| Harrow & Wealdstone | 9:53 mins |
| Harrow & Wealdstone | 27:53 mins |
| Watford Junction | 7:52 mins |
| Watford Junction | 19:33 mins |