On weekdays the first train departs Alexandra Palace at 05:47 arriving at Knebworth at 06:16. The last train departs Alexandra Palace at 01:43 arriving at Knebworth at 02:14. These timings are based on the "railway day" which begins at 04:30.
Journey Time
On trains operated by Great Northern (GN) the average journey time is 28 minutes. On trains operated by Thameslink (TL) the average journey time is 28 minutes. The overall average journey time between Alexandra Palace and Knebworth is 28 minutes.