Southeastern has warned customers of travel disruptions with no trains running on Wednesday or Saturday and limited services on Friday amid industrial action.
It comes as the ASLEF and RMT unions are striking.
There will be no trains or replacement buses running on Wednesday or Saturday, and Friday will see a "limited service" running.
Here's what you need to know:
Wednesday, May 31- ASLEF strike
There will be no trains or replacement buses running.
Thameslink and Southern services are also not running.
Tickets can be used on the day before the date on the ticket or up to and including Monday, June 5.
Friday, June 2 - RMT strike
A ‘limited service’ will run with some routes closed, and only 58 out of 180 stations will be open.
No replacement buses will serve closed stations.
Southeastern says early morning trains will be busy as queuing systems may be in place at some stations, but this is "continually under review".
If you are heading to Epsom’s Ladies’ Day, check before you travel, and the advice is to "plan your entire journey".
Routes operating on June 2
London to Dartford
Sidcup and Woolwich lines
London to Bromley
London to Ashford International
Ashford International to Ramsgate
London to Bromley North, Orpington and Sevenoaks.
Tickets can be used on Thursday, June 1 or up to and including Tuesday, June 6.
Saturday, June 3 - ASLEF strike
No trains or replacement buses running. Thameslink and Southern are also not running.
Southeastern have said that customers with Advance, Anytime or Off-Peak tickets purchased for use on a strike day, can use these on alternative days around the date of intended travel.
Tickets can be used on Thursday, June 1 or up to and including Tuesday, June 6.
You can claim a fee free refund for unused tickets if the service is delayed, cancelled or rescheduled after the ticket is purchased.
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