An average 2.8% increase in rail fares comes into effect on Thursday, pushing the cost of some commuter travel to more than £5,000 a year.
The increase is the smallest rise in four years, according to the pan-industry Rail Delivery Group.
Chancellor George Osborne said in last month's Autumn Statement he would keep fares in line with July's Retail Price Index (RPI) inflation rate of 3.1%.
But campaigners say that fares are rising three times faster than incomes.
Some regulated tickets, including season tickets, anytime and off-peak tickets, have risen on average...