| First train | 03:50 | |
|---|---|---|
| Last train | 01:00 | |
| Departure station | Hatfield (Herts) | |
| Arrival station | London Underground Zone 1 | |
| Journey time | From 24m | |
| Frequency | 48 trains per day | |
| Changes | 1 change | |
| Train operators |
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