This will affect journeys from Monday to Friday (June 22 to June 26).
Here is a full breakdown to help you plan ahead.
Engineering work will take place overnight at multiple locations, leading to late evening and overnight changes across several routes.
Monday only (June 22):
From 10.45pm until the end of service, buses will replace trains between Tonbridge and Wadhurst/Hastings.
Monday to Thursday (June 22 to June 25):
From 11.10pm each night until services finish, buses will run between Maidstone East and Ashford International.
The 10.25pm and 11.25pm London Victoria to Ashford International trains will be diverted between Otford and Ashford International, running via Sevenoaks instead of the usual route.
Passengers will need to change at Otford to connect with services towards Maidstone East, and then continue by replacement bus to Ashford International stations.
The 12.25am service from London Victoria will only operate between London Victoria and Maidstone East.
Services between London Charing Cross/London Cannon Street and Maidstone East/Ashford International will terminate at Maidstone East and will additionally call at Kemsing, East Malling, and Barming.
Monday, Wednesday, and Thursday (June 22, June 24, and June 25):
Late-night services from London St Pancras International to Faversham (11.20pm and 11.50pm) will be replaced by buses between Ebbsfleet International, Gillingham (Kent), and Faversham.
These buses will stop at all stations apart from Higham, Newington, and Teynham.
From 11.20pm until the end of service, buses will also replace trains between Sittingbourne and Sheerness-on-Sea.
Tuesday only (June 23):
From 11.40pm until services end, buses will replace trains between Tunbridge Wells and Hastings.
These replacement buses will run between Tunbridge Wells and Hastings, serving Wadhurst, Battle, West St Leonards, and St Leonards Warrior Square.
Additional buses will operate between Tunbridge Wells and Robertsbridge, stopping at all stations.
A small shuttle bus will run between Battle and Crowhurst.
Passengers needing assistance at Crowhurst are advised to contact Southeastern’s accessible travel team before travelling.
Tuesday to Friday (June 23 to June 26):
From 12.30am until the end of service, buses will replace trains between Beckenham Junction (Tuesday, Wednesday, and Friday)/Bromley South (Thursday) and Orpington, calling at all stations.
Tuesday, Thursday, and Friday (June 23, June 25, and June 26):
From 12.10am until services finish, buses will operate between Gillingham (Kent) and Faversham, calling at all stations except Teynham.
A connecting bus will also run between Sittingbourne and Faversham via Teynham, with a connecting train continuing from Faversham to Ramsgate.
Wednesday to Friday (June 24 to June 26):
From 12.30am until the end of service, trains towards Orpington and Sevenoaks will not call at Lewisham.
An accessible bus will depart Lewisham at 1.10am, running to Orpington and stopping at all intermediate stations.
Thursday only (June 25):
The 11.07pm London St Pancras International to Ramsgate service via Dover Priory will be diverted between Dover Priory and Ramsgate, taking an alternative route and additionally calling at Faversham and Margate.
A replacement bus will operate between Dover Priory and Ramsgate, serving all stations except Thanet Parkway.
