Southbound - Platform 1
Northbound - Platform 2
| Harrow & Wealdstone | 8:47 mins |
| Harrow & Wealdstone | 24:47 mins |
Platform 2
| Watford Junction | 6:12 mins |
| Watford Junction | 17:29 mins |
| Harrow & Wealdstone | 8:47 mins |
| Harrow & Wealdstone | 24:47 mins |
| Watford Junction | 6:12 mins |
| Watford Junction | 17:29 mins |