On weekdays the first train departs Knebworth at 05:08 arriving at London Kings Cross at 05:46. The last train departs Knebworth at 00:32 arriving at London Kings Cross at 01:14. 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 40 minutes. On trains operated by Thameslink (TL) the average journey time is 42 minutes. The overall average journey time between Knebworth and London Kings Cross is 40 minutes.