Rail passengers will face an average ticket price rise of 1% from January.
It will be the lowest rise since 2010, when fares actually decreased by 0.4%.
The new-year rises are based on July's rate of Retail Price Index inflation announced by the Office for National Statistics.
Rail fares have risen nearly three times faster than wages over the past five years, leaving commuters "seriously out of pocket", according to a new report.
A study by the Action for Rail campaign showed that season tickets and other regulated fares had increased by 25% since 2010, while average pay went up by just 9%.