| First train | 05:32 | |
|---|---|---|
| Last train | 22:31 | |
| Departure station | London Underground Zone 1-6 | |
| Arrival station | Garston (Hertfordshire) | |
| Journey time | From 26m | |
| Frequency | 18 trains per day | |
| Changes | 1 change |
For more money-saving tips on UK and European train travel, read our cheap train tickets guide.