Southern members of the ASLEF union have suspended all industrial action in the UK, including strikes due to take place next week.
As a result, the train operator will return to a full service from Tuesday, January 24th.
Until then, Southern will have an amended timetable, but will reinstate extra services if possible.
The announcement was made ahead of fresh negotiations taking place between Aslef and Southern.
Union officials are meeting Southern bosses under the joint chairmanship of TUC general secretary Frances O’Grady and Andy Meadows, HR director of rail firm Abellio.
However, a single strike is planned to take place on January 23rd.
Southern said it would run more than 70 per cent of its trains next Monday – ten per cent more of its normal timetable than it operated on previous conductor strike days.