Engineering work is taking place between Purley and Horley, closing all lines via Redhill.
From approximately 23:59 on Monday to Thursday evenings until approximately 05:00 on Tuesday to Friday mornings, trains will be diverted and will not call at Coulsdon South, Merstham, Redhill, Earlswood or Salfords.
Replacement buses will run between Gatwick Airport and East Croydon / between Purley and Horley to provide connections.
You can plan your journey using the National Rail Enquiries Journey Planner.
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.