Engineering work is taking place in the Finsbury Park area, closing some lines very early on Sunday morning.
As a result, the 01:40 London Kings Cross to Welwyn Garden City service will start from Finsbury Park at 01:48.
Paper rail tickets will be accepted at no extra cost on London Underground / London Buses between London Kings Cross and Finsbury Park.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner.
You can plan your journey on London Underground / London Buses by using the Transport for London Journey Planner.