Engineering work is taking place until 08:30 in the Potters Bar area, closing some lines.
From the start of Sunday service until approximately 08:30, buses replace trains between Potters Bar and Welwyn Garden City / Letchworth Garden City / St Neots.
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 set-down 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.