Train operator Southern said that services will be affected by engineering works over the Easter holiday.
London Bridge Station will be closed to Southern services for from Good Friday (18 April) to Easter Monday (21 April) inclusive.
Southern advised passenger to check before they travel as Network Rail continues to rebuild London Bridge station as part of the Thameslink programme.
Part of this work requires engineering work to upgrade the track and signalling systems in and around London Bridge.
Southern services that normally call at London Bridge will be heavily revised with replacement buses operating between London Bridge and Beckenham Junction via Tulse Hill on the Friday, Saturday and Monday.
On Easter – Sunday 20 April – a replacement bus service will run between London Bridge and Tulse Hill.
Trains to Victoria should be unaffected.