| First train | 04:53 | |
|---|---|---|
| Last train | 01:45 | |
| Departure station | London Underground Zone 1-6 | |
| Arrival station | Stevenage | |
| Journey time | From 21m | |
| Frequency | 136 trains per day | |
| Changes | 1 change | |
| Train operators | East Midlands Railway, Great Northern, London North Eastern Railway, Thameslink |
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