Engineering work is taking place between London St Pancras International and Luton, resulting in the closure of some lines.
Trains from London St Pancras International to Sheffield will call additionally at Kettering and Market Harborough.
Trains from London St Pancras International to Nottingham will call additionally at Luton Airport Parkway, Luton, Bedford and Wellingborough.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner