Westbound - Platform 1
| Heathrow Terminal 5 | missed it |
| Rayners Lane | 4:36 mins |
| Heathrow Terminal 5 | 9:36 mins |
| Rayners Lane | 14:36 mins |
| Rayners Lane | 20:36 mins |
| Heathrow Terminal 5 | 26:36 mins |
Eastbound - Platform 2
| Cockfosters | 1:06 mins |
| Oakwood | 4:36 mins |
| Cockfosters | 7:36 mins |
| Cockfosters | 10:36 mins |
| Cockfosters | 12:36 mins |
| Oakwood | 15:36 mins |
| Cockfosters | 19:36 mins |
| Arnos Grove | 22:36 mins |
| Oakwood | 27:36 mins |