Engineering work is taking place between London Liverpool Street and Cheshunt, closing some lines.
Saturday
Services between London Liverpool Street and Cambridge / Stansted Airport will be diverted to Seven Sisters and will not call at Tottenham Hale.
Services between Hertford East and Stratford will call at Tottenham Hale.
Journey times will be extended by up to 10 minutes in both directions.
Sunday
All West Anglia / Stansted Express services to / from Liverpool Lime Street will divert via Tottenham Hale and Stratford.
Journey times will be extended by up to 10 minutes in both directions, with services departing London Liverpool Street up to 10 minutes earlier than usual.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner