Passengers on route P12 will face a longer wait at bus stops after Transport for London announced that it is cutting the daytime frequency from six buses an hour to five.
The P12 links Surrey Quays with Brockley Rise via Southwark Park Road, The Blue and St James’s Road.
TfL says it is making the change – which comes into effect on 14 October – “to match demand”.
The cut to route P12 comes a fortnight after similar reductions to the service on route 47.