Sales rose by 0.1% in the nine weeks to 20 September with higher food revenues offsetting a dip in drink sales. Group revenues for the 51 weeks so far this year are 0.6% higher.
Alastair Darby, chief executive, said it had been a difficult quarter for the pub chain but the integration of the acquisition of the 173 outlets from the Orchid Group had gone well.
Mitchells & Butler had also expanded nine sites and opened 22 new sites this financial year.
The company said its strategy for 2015 is to improve its food offering, IT infrastructure and customer service.
He was confident these measures will translate into growth over the next year, Darby added.