The changes are due to engineering work or seasonal changes.
These will affect trains from Good Friday to Easter Monday (April 17 to April 21).
We have outlined and simplified the details so that you can plan your trip this Easter weekend.
Good Friday to Easter on Monday (April 18 to April 21):
The engineering work is being carried out between London Victoria and Clapham Junction, closing some lines.
A reduced train service will be made between London Victoria and Clapham Junction and East Croydon.
No trains will call Battersea Park to London Victoria. London Victoria customers should travel to Clafam Junction, then change for a train to London Victoria.
The trains that are usually executed between London Victoria and London Bridge will not work.
Trains that generally work between London Bridge and Epsom will not work.
The trains that are generally executed between London Victoria and Littlehampton and Eastbourne will deviate to run to and from the London bridge.
The trains that are made between London Victoria and Reigate will be modified to run between Redhill and Reigate only.
The engineering work is also being carried out between Eastbourne and Bexhill, closing all the lines.
Buses will replace trains between Eastbourne and Hastings.
Travel times will increase when using replacement buses.
Saturday and Sunday of Easter (April 19 and April 20):
Buses will replace trains between Havant and Southampton Central.
Travel times will increase when using replacement buses.
Easter Sunday and Easter Monday (April 20 and April 21):
The engineering work is carried out early in the morning between London Victoria and East Croydon, closing some lines.
As a result, from approximately 1 am to 6.30 am on Sunday and Monday morning, buses will replace trains between London Victoria and London Bridge or Clafam Junction, and between Clafam Junction and East Croydon.
The 5.08am train of 05:08 London Victoria to Brighton and 05:20 London Victoria to East Grinstead Services will begin from the London bridge.
No Gatwick Express service will run the thesis times.