Northbound - Platform 1
| Harrow & Wealdstone | 14:49 mins |
| Harrow & Wealdstone | 28:49 mins |
Platform 1
| Watford Junction | 5:48 mins |
| Watford Junction | 20:05 mins |
| Watford Junction | 35:05 mins |
| Watford Junction | 50:05 mins |
Southbound - Platform 2
| Elephant & Castle | 7:49 mins |
Platform 2
| London Euston | 10:33 mins |
| London Euston | 25:05 mins |
| London Euston | 40:05 mins |
| London Euston | 55:05 mins |