Engineering work is taking place at Welwyn Garden city, closing all lines through the station.
Grand Central:
Journey times will be extended by up to 15 minutes, and trains will be diverted.
Hull Trains:
Journey times will be extended by up to 15 minutes, and trains will be diverted.
Great Northern / Thameslink:
Trains between London King's Cross and Stevenage, Peterborough, Cambridge and King's Lynn will be diverted between Alexandra Palace and Stevenage and will be unable to call at stations via Welwyn Garden City. A revised timetable will operate with extended journey times.
Replacement buses will operate calling at stations between Alexandra Palace and Stevenage via Welwyn Garden City.
LNER:
Services will be diverted to run via Hertford North (not calling), extending journey times by up to 15 minutes. Services will depart London Kings Cross up to 15 minutes earlier than normal.
Check before you travel:
If you are travelling with Grand Central, Hul Trains or LNER, please use the National Rail Enquiries Journey Planner
If you are travelling with Great Northern or Thameslink, these changes are not currently shown in the National Rail Enquiries Journey Planner, please check back nearer to the time of travel.
You can find the location of your bus replacement by checking station signs or by searching for your station on our station information pages
Bicycles:
Non folding bicycles are not allowed on rail replacement bus services at any time. Folding bicycles are allowed if fully folded. For more information, please see here.