Engineering work is taking place between Finsbury Park and Letchworth Garden City / Peterborough, closing various lines.
Between 00:30 and 05:45, buses will replace trains between Finsbury Park and Welwyn Garden City / Stevenage.
Between 02:00 and 07:55, buses will replace trains between Welwyn Garden City and Letchworth Garden City / Stevenage.
Between 02:00 and 09:30, buses will replace trains between Stevenage and Peterborough.
Please note that this work affects some trains running at the end of Saturday's service and into Sunday morning.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner.
Replacement bus travel advice:
For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use our Rail Replacement Services page.
You can find the pick-up and drop-off location of rail replacement services by checking station signage or by searching for your station on our Find a Station page.
Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.