Northbound - Platform 1
| Harrow & Wealdstone | 1:15 mins |
| Harrow & Wealdstone | 4:15 mins |
| Harrow & Wealdstone | 14:45 mins |
| Harrow & Wealdstone | 20:44 mins |
| Harrow & Wealdstone | 27:44 mins |
Platform 1
| Watford Junction | 10:52 mins |
| Watford Junction | 30:10 mins |
| Watford Junction | 40:40 mins |
| Watford Junction | 57:40 mins |
Southbound - Platform 2
| Elephant & Castle | now |
| Elephant & Castle | 7:44 mins |
Platform 2
| London Euston | 6:03 mins |
| London Euston | 17:40 mins |
| London Euston | 34:40 mins |
| London Euston | 47:40 mins |