The operator London North Western announced on the 29th July.
The operator took the difficult decision to suspend services at the end of March due to the impact of coronavirus on train crew availability and low passenger numbers.
Rail replacement buses have been running since.
Now, with increased numbers of train crew available and more people using the railway, the operator has announced services will resume in the morning and evening peaks from Monday 24 August. It is hoped a fuller service will be restored by the end of the year.
Lawrence Bowman, customer experience director for LNR, said:
“I would like to thank our customers on the Abbey Line for their patience and understanding while we have been working hard to bring back their train service.
“The coronavirus had an unprecedented impact on our traincrew and we had to make hard decisions on how to use our available resources to move the maximum number of passengers.
“I am pleased we will once again see passenger trains on the Abbey Line in August and barring any unforeseen events we hope to run an even fuller service later this year.”
The new timetables for the Abbey Line will be published in coming weeks.