Commuters and late-night travellers across south-east London face four evenings of disruption this week, as Southeastern diverts trains and lays on replacement buses while engineering work takes place on the network.
The changes affect services through Bromley, Bexley, Lewisham, Dartford and Greenwich from Tuesday to Friday, September 29 to October 2, with the biggest impact falling after midnight when several trains are diverted off their normal routes and buses take over on key stretches.
Passengers heading home late are being urged to check their journeys before setting out, as some trains will skip stops entirely and others will be replaced by road transport for parts of the trip.
Victoria to Ashford trains diverted
The most significant change concerns the 12.25am service from London Victoria to Ashford International, which will run every night from Tuesday to Friday but on a heavily altered route.
Instead of calling at its usual stations, the train will run non-stop from Bromley South all the way to Ashford International. Anyone travelling to stations between Swanley and Ashford International will need to take a different train: the 12.40am London Victoria service to Rochester and Sole Street, then change at Swanley for a replacement bus to complete the journey.
Replacement buses will cover the gap between Swanley and Maidstone East, calling at all stations except Kemsing and East Malling. A second set of buses will run between Maidstone East and Ashford, calling at Bearsted and Lenham, while a minibus will shuttle between West Malling and East Malling.
Buses replace trains via Bexleyheath
Closer to London, a separate block of engineering work means buses will replace trains between Lewisham and Dartford and Gravesend from Wednesday to Friday, running via Bexleyheath and Woolwich Arsenal.
The buses will operate from 12.15am until the end of service each night, while trains that would normally use the Bexleyheath line are diverted to run via Sidcup instead.
The changes will be felt at Lewisham, Bexleyheath, Dartford and around Woolwich Arsenal, and the disruption continues overnight on Thursday into Friday morning.
Night by night: what is happening
Tuesday to Friday: the 12.25am London Victoria to Ashford International is diverted, running non-stop from Bromley South. Replacement buses cover Swanley to Maidstone East (except Kemsing and East Malling), Maidstone East to Ashford (via Bearsted and Lenham), plus a West Malling to East Malling minibus.
Wednesday to Friday: replacement buses run between Lewisham and Dartford/Gravesend via Bexleyheath and Woolwich Arsenal from 12.15am, with trains diverted via Sidcup.
Thursday night into Friday morning: both sets of changes are in force, so allow the most extra time on this night.
What to do if you are travelling
If you normally catch one of the last trains home, the single most important step is to check your specific journey on the night. Late-night engineering timetables do not always appear the way daytime services do, and a train that runs normally at 11pm may be a bus by 12.30am.
Build in extra time: replacement buses take longer than trains, they can be affected by road traffic, and connections at stations like Swanley and Lewisham may involve a wait. If your journey involves a change from train to bus, keep your ticket handy and listen for announcements, as stopping patterns on rail replacement services do not always match the railway stations one to one.
It has been a disruptive period for travel across the capital. Drivers can check this week’s A2 closures and roadworks and planned M25 shutdowns before setting out, as roadworks add pressure to the same late-night journeys.
Why the work is happening
Overnight engineering access is how the railway carries out the bulk of its maintenance: track inspections, repairs and renewals that cannot safely happen while trains are running at full frequency. The work is deliberately scheduled in the small hours to affect as few passengers as possible, but anyone travelling late still needs to plan around it.
Southeastern typically confirms the final details of each night’s timetable a few days in advance, so if you are travelling later in the week, it is worth checking again closer to the day rather than relying on what you saw on Monday.

